I'll look into this :) The game is absolutely not optimized and the sprites are huge - I'm planning to resize them down later, but I needed this release for the game jam deadline (still late lol) so I had to just do a quick build, check that it worked and ship.
Could be it only works on nvidia gpu's at the moment or something similar, I'll try to dig into the problem :)
edit - it's definitely a gpu issue - integrated intel gpu's have half the max texture size of nvidia. I'll downscale to compensate.