If you use Linux Ubuntu or OS based on Ubuntu, try this to fix the freezing app when using the device tab

[frogerbytes-create]

webkit_vueresize_fix.c

webkit_vueresize_fix.so.txt

So I am attaching a fix file that will need to be compiled on the system (the dot.c file), or I am attaching my compiled version of the .so file (just drop the .txt). if you attempt to use my compiled version, I do not know if it will work, but am hopeful. if you open the dot.c file you can see the instructions for build and usage of the file. while the file was orginally for orcasilcer, it resolves the same issue on QIDIStudio.

Instructions from the dot.c file

/*

• webkit_vueresize_fix.c
• LD_PRELOAD hook for OrcaSlicer on Linux.
• Intercepts webkit_web_view_load_uri and injects a user script that
• replaces the broken vue-resize hack with native ResizeObserver,
• preventing the WebKitGTK crash on Fluidd < v1.37.0.
• Build:
• gcc -shared -fPIC -o webkit_vueresize_fix.so webkit_vueresize_fix.c \

•   -ldl $(pkg-config --libs glib-2.0) -I$(pkg-config --cflags glib-2.0)
  

• Usage:
• LD_PRELOAD=/path/to/webkit_vueresize_fix.so orca-slicer
  */

For Appimage useage, the same idea works. For example, I can run from the terminal "env LD_PRELOAD=/home/reigar/.fix/webkit_vueresize_fix.so /home/reigar/Applications/QIDIStudio_v02.07.02.60_Ubuntu24_f832cd9a139bef89f3c5f7002830bcc9.AppImage %F" and the appimage runs just fine, and does not freeze if I try to view the webserver powered by fluid in the device tab.