Cura initially not loading files upon import

[gm094]

Cura Version

5.8.1

Operating System

Kubuntu 22.04 (x11 desktop with plasma 5.27 framework)

Printer

All

Reproduction steps

1. Launch Application Appimage through custom .desktop file (have used same file for years without issues)
2. import models by dragging file to build plate from another file window or by importing via the button built into Cura (same issue with both)

Actual results

Models either don't load at all and I have to restart the application, or more commonly take a long time to load (upwards of 2 minutes for one file). The window is still responding, and I can use Cura (pan, change settings, open menus, etc) normally while waiting on a file to load in, the file not loading is the only issue. Once one file loads in, I can import other files quickly and normally without issue. This happens every time I try to use cura (currently about 30 times this month), and only became an issue after the last update. Only plugin I am running is octoprint integration, but that isn't the issue as far as I am aware

Expected results

Simply drop a file and have it load in instantly.

Add your .zip and screenshots here ⬇️

No files since this happens with everything I try to import, regardless of type or printer or size.

[MajliTech]

I also have the same issue, Plasma 6 on Fedora Linux 40,

[MajliTech]

H264 1280x720 30 fps, bitrate 1974 kb/s

cura.n.mp4

Hopefully this shows what we are talking about. When minimizng the window, the object suddenly decided to load.

[carloza]

Hi, I have the same problem since 3 or 4 mounth ago.
cura version: 5.8.1 (same issue in previous versions)
OS: Arch Linux
Kernel: 6.11.3-arch1-1
DE: plasma 6.2