the game splits into tiny subwindows when in hyprland

[RealSteel]

Game Version​

2026.8.5.5168

Operating System​

Linux

What Happened​

When inside the vehicle assembly building in hyprland in windowed mode, alt-tabbing does not shrink the window properly but instead splits UI elements like the launch window, staging and the NEW VEHICLE/SWITCH VEHICLE buttons into small broken windows, and if you try to re-fullscreen the game it refuses to fullscreen.

What Was Expected​

The game window properly shrinking

Reproduction Steps​

1. Set game to windowed mode
2. Enter vehicle assembly building
3. Alt-Tab

Reproduction Rate​

100% of the time out of 3 tests

​

 

[Psycho_zs]

Two problems here:
1. The game can not yet handle window size changes. Any size change will bork mouse input and UI positioning. Floating rule works for me: hl.window_rule({match = {title = "^(Kitten Space Agency.*)$"}, float = true})
2. It expects to be able to spawn windows at arbitrary locations which does not make sense on Wayland. Run with -fixed-viewport to prevent this, until those windows get some metadata to be properly targetable by rules (e.g. to folat them and place at mouse position).