How odd. That is the first point a GPU shader is used, outside the preloader, which can cause some problems on integrated hardware. It is strange that the web version works fine though, as it should have the same problem, but more so.
Does this only happen when an attack hits, or does it also happen when you inspect the target?
Yes, it's a shader issue then. It appears to be a know issue with the GODOT engine (https://github.com/godotengine/godot/pull/87352). They are attempting a fix with the next major release. I will upgrade to that once it releases.
