Blank window

[daxime]

When I launch the AppImage version of Catapult, the window is white and in the terminal I have this message:
Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...

My OS in CachyOS.

[TheStarvedOne]

(wrote with chatgpt btw but it was solved on my side, i can use the app)
I can reproduce this on Steam Deck / SteamOS as well.

Environment:

• Device: Steam Deck
• Session type: X11
• Tried: Catapult_0.1.5_amd64.AppImage and extracted AppImage via squashfs-root/AppRun
• Also tested inside an Arch Distrobox/container

Initial dependency check on the extracted AppImage showed:

./squashfs-root/usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/WebKitNetworkProcess:
    libwebkit2gtk-4.1.so.0 => not found

./squashfs-root/usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/WebKitWebProcess:
    libwebkit2gtk-4.1.so.0 => not found

After installing WebKitGTK-related dependencies inside the Arch container, the AppImage still opens a white window and exits with:

Could not create default EGL display: EGL_BAD_PARAMETER. Aborting...

I also tried these launch workarounds, but the result was the same:

WEBKIT_DISABLE_DMABUF_RENDERER=1
WEBKIT_DISABLE_COMPOSITING_MODE=1
LIBGL_ALWAYS_SOFTWARE=1
GDK_BACKEND=x11
GDK_BACKEND=wayland

There were also GTK module warnings inside the container:

Failed to load module "canberra-gtk-module"
Failed to load module "colorreload-gtk-module"
Failed to load module "window-decorations-gtk-module"

But the actual fatal error remains the EGL one.

**Important clue: from what I found, the Linux binaries built by GitHub Actions may be the failing path, while local builds apparently work (I can use the app and I don't see white screen anymore). So this may be AppImage/GHA packaging related rather than a Catapult source/runtime issue.**