[TRACKER] Project converter issues

[KoBeWi]

There are quite a few issues about the Godot 3->4 project converter, so I guess it makes sense to organize them in one place.

Bugs (wrong conversions, etc.)

Beta Give feedback

1. Converter 3 -> 4: Replaces all connect() functions although not signal #74650
   enhancement topic:editor +2
2. "3D" letters suddenly appearing in filenames of sprite .pngs after importing from 3.5 to 4.0 - causing .tscn not to load. #74579
   bug topic:editor +2
3. The --convert-3to4 flag removes spaces around commas #74204
   enhancement topic:editor +2
4. 3 to 4 converter adds seemingly spurious ") #" #74171
   bug topic:editor +2
5. 3 to 4 converter alters strings "Room" into "Node3D" #73996
   bug topic:editor +2
6. [4.0.rc5] Converter deletes lines that use OS.window_size #73909
   bug topic:editor +2
7. --convert-3to4 converts common simple English words in comments such as: "on" -> "checked", "off" -> "unchecked" #73505
   bug topic:editor +2
8. Godot 4 project convertor failing to load a music file #73393
   bug crash topic:audio topic:editor topic:import +5
9. Tilemap creates hundreds of tiles in Godot 4 migration making it unusable #71188
   enhancement topic:2d topic:editor topic:porting usability +5
10. Godot 4 converter adding Callable and bindings where methods, signals, etc have 'start' anywhere in their name, even comments! #71134
    bug topic:editor +2
11. 4.x project converter tool messes up super class constructor calls #70542
    bug topic:editor +2
12. v4.0-beta3 editor crash with project upgrade from v3.4.4. #67556
    bug confirmed topic:2d topic:editor +4
13. V3.5.1 to V4Beta2 conversion process deletes bezier curves (and malforms other keys) in animationplayers #66964
    bug confirmed topic:animation topic:editor +4
14. Conversion Tool Problem #66256
    bug topic:editor +2
15. 3-to-4 project converter changes instance of "Reference" in a comment to "RefCounted" #66061
    bug confirmed topic:editor +3
16. Converting scene from 3.x to 4 causes animations to stop looping #57779
    bug topic:animation +2
17. Conversion tool: exported variable types are incorrect #75852
    bug topic:editor +2
18. Broken DynamicFont -> FontFile 3to4 conversion #77285
    bug needs testing topic:editor +3
19. BoxShape3D and RectangleShape2D has incorrect size after project conversion due to change how size/extents are treated in 4.x #77931
    bug topic:editor +2
20. Project converter unnecessarily removes messages from asserts #78069
    bug topic:editor +2
21. Translation files are removed by --convert-3to4 #78595
    bug confirmed topic:editor +3
22. Tileset fails to convert from Godot 3.5 to 4.1 #79110
    bug topic:2d topic:editor +3

Missing conversions

Beta Give feedback

1. Conversion Tool: MacOS Export Template Settings Missing #74663
   enhancement topic:editor +2
2. Godot 3 to 4 Conversion: scene Label align and valign values get discarded #74493
   enhancement topic:editor +2
3. [4.0] Project converter: MenuButtons don't migrate PopupMenu items set at design time #74414
   enhancement topic:editor +2
4. [4.0] Project converter: Embedded ButtonGroup subresources in scene get clobbered #74413
   enhancement topic:editor +2
5. [4.0] Project converter: draw_string specifying optional arguments are not updated to include new argument order #74412
   enhancement topic:editor +2
6. [4.0] Project converter: Editor hints intended to migrate to @export_ variants comment out nontrivial syntax #74411
   enhancement topic:editor +2
7. [4.0] Project converter: Missing conversion for button_pressed for nodes extending BaseButton #74410
   enhancement topic:editor +2
8. [4.0] Project converter: Missing conversion for class properties extending InputEventWithModifiers #74408
   enhancement topic:editor +2
9. --convert3to4 cannot convert project that includes *.ttf file #74153
   archived topic:editor +2
10. Conversion to 4.0 doesn't change hex string to RGBA in Color constructor #73633
    enhancement topic:editor +2
11. No meshes from Godot 3 conversion to 4 beta 13 #71678
    discussion topic:import +2
12. Converter 3 -> 4: ImageTexture's create_from_image is not converted, resulting in a silent bug #67319
    bug topic:editor +2
13. update() is not renamed to queue_redraw() for Node2D(or anything that inherits CanvasItem) #67003
    bug topic:editor +2
14. Converting C# does NOT rename certain things #66321
    archived needs testing topic:dotnet topic:editor +4
15. 3-to-4 project converter doesn't preserve viewport width and height #66125
    bug topic:editor +2
16. Converter 3 -> 4: the "Theme Overrides" properties is not migrated #66052
    bug topic:editor +2
17. Converting project from Godot 3 to 4 causes some nodes properties to revert to their defaults #65999
    archived enhancement topic:editor +3
18. 3.x to 4.0 converter does not convert rotation_degrees property of animations #65481
    bug confirmed topic:animation topic:editor +4
19. Unexpected results when converting a project from 3 to 4 #63913
    bug topic:editor +2
20. --convert-3to4 doesn't convert shaders #63673
    bug topic:editor +2
21. References to animations tagged with -loop need to have that part of them removed in the 3 to 4 converter #62580
    discussion topic:3d topic:import +3
22. Converting Godot 3 project to Godot 4 doesn't properly handle transform tracks in animations #55292
    bug confirmed topic:animation topic:editor +4
23. Move compatibility handlers to a dedicated Resource conversion system #50691
    confirmed enhancement topic:core topic:import +4
24. Camera2D Process Mode is "When Paused" by default, was this intentional? #74845
    bug topic:editor +2
25. ArrayMeshes converted from Godot 3.x display incorrectly in 4.0 #63550
    bug confirmed regression topic:3d topic:import +5
26. Input Map keys are not converted by the project converter tool #76336
    bug topic:editor topic:input +3
27. Project converter doesn't convert JoystickList to JoyButton #78070
    enhancement topic:editor topic:input +3
28. Touch buttons' graphics fail to convert to Godot 4 #78930
    discussion enhancement topic:2d topic:gui +4
29. Godot 3 to 4 converter algorithm can't convert some properties of CPUParticles2D #85354
    topic:particles +1

[RedworkDE]

While #73871 has converted in the title, it is not related to the project converter, just the C# bindings in general.

[fishclaws]

can we add tileset conversion issues?

1. v4.0-beta3 editor crash with project upgrade from v3.4.4. #67556)
2. Tilemap creates hundreds of tiles in Godot 4 migration making it unusable #71188

[YuriSizov]

Adding a note that we should add these renames, most of them at least: #44194. And maybe some of these: #65437

[tlobig]

As for tilesets/tilemaps my dedicated converter can help workaround issues, but may not work for everyone: https://github.com/tlobig/convert_gd3_togd4_tilemaps

[tlobig]

an then this issue here is a treasure trove of things still wrong with the converter:
#50691

[nobuyukinyuu]

Will update my comment as I find and report issues:

#74408
#74410
#74411
#74412
#74413
#74414

[Reneator]

One find by me, will add more if this type of bug report is helpful for improving the converter:

#74493

[tlobig]

Now, is there any plan to introduce a dedicated conversion system (cf. #50691)?

[Reneator]

A bug/unintended refactor in the context of the converter:
#74650

[ChronoDK]

Array slice method: The end argument is exclusive now. It was inclusive before. Conversion could fix this easily by adding -1.

[KnightNine]

CollisionShape3D fails to carry its shape resource over to 4.0. if it is sourced from a file, not sure if it is a bug so I'm mentioning it here.

[KnightNine]

#63550

[jpcerrone]

Input Map's joypad button numbers are not converted to new numbers in 3->4 conversion

[sketchyfun]

#77931

[idbrii]

#78069: Project converter unnecessarily removes messages from asserts

[idbrii]

Project converter doesn't convert JoystickList to JoyButton #78070

[vaner-org]

Project converter doesn't remember animations with -loop in AnimationTree #75825