[BUG] stack expects a non-empty TensorList

[aphaits]

load video node goes into error when loading starting frame other than frame 0

Full log

ComfyUI Error Report

Error Details

• Node Type: LoadVideo [n-suite]
• Exception Type: RuntimeError
• Exception Message: stack expects a non-empty TensorList

Stack Trace

  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 323, in execute
    output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 198, in get_output_data
    return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 169, in _map_node_over_list
    process_inputs(input_dict, i)

  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 158, in process_inputs
    results.append(getattr(obj, func)(**inputs))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-N-Nodes\py\video_node_advanced.py", line 506, in encode
    i_tensor = torch.stack(i_list, dim=0)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^

System Information

• ComfyUI Version: v0.2.2-22-g81778a7
• Arguments: ComfyUI\main.py --windows-standalone-build
• OS: nt
• Python Version: 3.11.6 (tags/v3.11.6:8b6ee5b, Oct 2 2023, 14:57:12) [MSC v.1935 64 bit (AMD64)]
• Embedded Python: true
• PyTorch Version: 2.2.2+cu121

Devices

• Name: cuda:0 NVIDIA GeForce RTX 2070 SUPER : cudaMallocAsync
  • Type: cuda
  • VRAM Total: 8589475840
  • VRAM Free: 7120899300
  • Torch VRAM Total: 301989888
  • Torch VRAM Free: 52448484

Logs

2024-09-11 05:04:17,889 - root - INFO - Total VRAM 8192 MB, total RAM 65465 MB
2024-09-11 05:04:17,889 - root - INFO - pytorch version: 2.2.2+cu121
2024-09-11 05:04:19,010 - root - INFO - xformers version: 0.0.25.post1
2024-09-11 05:04:19,010 - root - INFO - Set vram state to: NORMAL_VRAM
2024-09-11 05:04:19,011 - root - INFO - Device: cuda:0 NVIDIA GeForce RTX 2070 SUPER : cudaMallocAsync
2024-09-11 05:04:19,330 - root - INFO - Using xformers cross attention
2024-09-11 05:04:19,937 - root - INFO - [Prompt Server] web root: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\web
2024-09-11 05:04:19,939 - root - INFO - Adding extra search path checkpoints F:/StableDiffusion/Models/Checkpoints
2024-09-11 05:04:19,940 - root - INFO - Adding extra search path configs path/to/stable-diffusion-webui/models/Stable-diffusion
2024-09-11 05:04:19,940 - root - INFO - Adding extra search path vae F:/StableDiffusion/Models/VAE
2024-09-11 05:04:19,940 - root - INFO - Adding extra search path loras F:/StableDiffusion/Models/LORAs
2024-09-11 05:04:19,941 - root - INFO - Adding extra search path upscale_models F:/StableDiffusion/Models/Upscale
2024-09-11 05:04:19,941 - root - INFO - Adding extra search path embeddings F:/StableDiffusion/Models/Embeddings
2024-09-11 05:04:19,941 - root - INFO - Adding extra search path hypernetworks path/to/stable-diffusion-webui/models/hypernetworks
2024-09-11 05:04:19,942 - root - INFO - Adding extra search path controlnet F:/StableDiffusion/Models/ControlNet
2024-09-11 05:04:19,942 - root - INFO - Adding extra search path facerestore_models F:/StableDiffusion/Models/Face_Restore
2024-09-11 05:04:19,942 - root - INFO - Adding extra search path facedetection F:/StableDiffusion/Models/FaceDetection
2024-09-11 05:04:19,943 - root - INFO - Adding extra search path clip_vision F:/StableDiffusion/Models/Clip_Vision
2024-09-11 05:04:19,943 - root - INFO - Adding extra search path clip F:/StableDiffusion/Models/Clip
2024-09-11 05:04:19,943 - root - INFO - Adding extra search path style_models F:/StableDiffusion/Models/Style_Models
2024-09-11 05:04:19,944 - root - INFO - Adding extra search path unet F:/StableDiffusion/Models/Unet
2024-09-11 05:04:19,944 - root - INFO - Adding extra search path ipadapter F:/StableDiffusion/Models/IP_Adapter
2024-09-11 05:04:19,944 - root - INFO - Adding extra search path insightface F:/StableDiffusion/Models/insightface
2024-09-11 05:04:19,945 - root - INFO - Adding extra search path instantid F:/StableDiffusion/Models/InstantID
2024-09-11 05:04:27,341 - tensorflow - WARNING - From F:\StableDiffusion\ComfyUI_windows_portable\python_embeded\Lib\site-packages\keras\src\losses.py:2976: The name tf.losses.sparse_softmax_cross_entropy is deprecated. Please use tf.compat.v1.losses.sparse_softmax_cross_entropy instead.

2024-09-11 05:04:27,896 - root - INFO - Total VRAM 8192 MB, total RAM 65465 MB
2024-09-11 05:04:27,896 - root - INFO - pytorch version: 2.2.2+cu121
2024-09-11 05:04:27,897 - root - INFO - xformers version: 0.0.25.post1
2024-09-11 05:04:27,898 - root - INFO - Set vram state to: NORMAL_VRAM
2024-09-11 05:04:27,898 - root - INFO - Device: cuda:0 NVIDIA GeForce RTX 2070 SUPER : cudaMallocAsync
2024-09-11 05:04:30,118 - datasets - INFO - PyTorch version 2.2.2+cu121 available.
2024-09-11 05:04:30,119 - datasets - INFO - TensorFlow version 2.15.0 available.
2024-09-11 05:04:35,347 - root - INFO - 
Import times for custom nodes:
2024-09-11 05:04:35,347 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\rembg-comfyui-node
2024-09-11 05:04:35,348 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\loadImageWithSubfolders.py
2024-09-11 05:04:35,348 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\websocket_image_save.py
2024-09-11 05:04:35,348 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\canvas_tab
2024-09-11 05:04:35,349 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-seamless-tiling
2024-09-11 05:04:35,350 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_IPAdapter_plus
2024-09-11 05:04:35,350 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Logic
2024-09-11 05:04:35,350 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\efficiency-nodes-comfyui
2024-09-11 05:04:35,351 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\cg-use-everywhere
2024-09-11 05:04:35,351 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_TiledKSampler
2024-09-11 05:04:35,351 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-VideoHelperSuite
2024-09-11 05:04:35,352 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Chibi-Nodes
2024-09-11 05:04:35,352 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyLiterals
2024-09-11 05:04:35,352 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_InstantID
2024-09-11 05:04:35,353 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui_controlnet_aux
2024-09-11 05:04:35,353 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-WD14-Tagger
2024-09-11 05:04:35,353 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Impact-Pack
2024-09-11 05:04:35,354 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyMath
2024-09-11 05:04:35,354 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Custom-Scripts
2024-09-11 05:04:35,354 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_UltimateSDUpscale
2024-09-11 05:04:35,355 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\Derfuu_ComfyUI_ModdedNodes
2024-09-11 05:04:35,355 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\rgthree-comfy
2024-09-11 05:04:35,355 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-various
2024-09-11 05:04:35,356 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Workflow-Component
2024-09-11 05:04:35,356 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_bitsandbytes_NF4
2024-09-11 05:04:35,356 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui_segment_anything
2024-09-11 05:04:35,357 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-TiledDiffusion
2024-09-11 05:04:35,357 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Marigold
2024-09-11 05:04:35,357 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-KJNodes
2024-09-11 05:04:35,358 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Comfyroll_CustomNodes
2024-09-11 05:04:35,358 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\facerestore_cf
2024-09-11 05:04:35,358 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-dream-project
2024-09-11 05:04:35,359 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_essentials
2024-09-11 05:04:35,359 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-AutomaticCFG
2024-09-11 05:04:35,360 - root - INFO -    0.0 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-workspace-manager
2024-09-11 05:04:35,360 - root - INFO -    0.1 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Crystools
2024-09-11 05:04:35,360 - root - INFO -    0.1 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-reactor-node
2024-09-11 05:04:35,361 - root - INFO -    0.1 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Inspire-Pack
2024-09-11 05:04:35,361 - root - INFO -    0.2 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-PhotoMaker-Plus
2024-09-11 05:04:35,361 - root - INFO -    0.2 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-propost
2024-09-11 05:04:35,362 - root - INFO -    0.5 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Manager
2024-09-11 05:04:35,362 - root - INFO -    0.5 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-N-Nodes
2024-09-11 05:04:35,362 - root - INFO -    0.6 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfy_mtb
2024-09-11 05:04:35,363 - root - INFO -    1.1 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-art-venture
2024-09-11 05:04:35,363 - root - INFO -    1.1 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-SUPIR
2024-09-11 05:04:35,363 - root - INFO -    1.3 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Custom_Nodes_AlekPet
2024-09-11 05:04:35,364 - root - INFO -    1.3 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Portrait-Maker
2024-09-11 05:04:35,364 - root - INFO -    1.4 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\was-node-suite-comfyui
2024-09-11 05:04:35,364 - root - INFO -    5.8 seconds: F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-Flowty-CRM
2024-09-11 05:04:35,367 - root - INFO - 
2024-09-11 05:04:35,382 - root - INFO - Starting server

2024-09-11 05:04:35,383 - root - INFO - To see the GUI go to: http://127.0.0.1:8188
2024-09-11 05:05:36,138 - root - INFO - got prompt
2024-09-11 05:05:38,690 - root - INFO - Prompt executed in 2.54 seconds
2024-09-11 05:05:43,328 - root - INFO - got prompt
2024-09-11 05:05:51,707 - root - INFO - Prompt executed in 8.37 seconds
2024-09-11 05:06:17,264 - root - INFO - got prompt
2024-09-11 05:06:19,577 - root - ERROR - !!! Exception during processing !!! stack expects a non-empty TensorList
2024-09-11 05:06:19,588 - root - ERROR - Traceback (most recent call last):
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 323, in execute
    output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 198, in get_output_data
    return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 169, in _map_node_over_list
    process_inputs(input_dict, i)
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 158, in process_inputs
    results.append(getattr(obj, func)(**inputs))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-N-Nodes\py\video_node_advanced.py", line 506, in encode
    i_tensor = torch.stack(i_list, dim=0)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: stack expects a non-empty TensorList

2024-09-11 05:06:19,589 - root - INFO - Prompt executed in 2.32 seconds
2024-09-11 05:08:20,225 - root - INFO - got prompt
2024-09-11 05:08:22,064 - root - ERROR - !!! Exception during processing !!! stack expects a non-empty TensorList
2024-09-11 05:08:22,065 - root - ERROR - Traceback (most recent call last):
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 323, in execute
    output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 198, in get_output_data
    return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 169, in _map_node_over_list
    process_inputs(input_dict, i)
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 158, in process_inputs
    results.append(getattr(obj, func)(**inputs))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "F:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI-N-Nodes\py\video_node_advanced.py", line 506, in encode
    i_tensor = torch.stack(i_list, dim=0)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: stack expects a non-empty TensorList

2024-09-11 05:08:22,066 - root - INFO - Prompt executed in 1.83 seconds

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