Thanks for playing!
I'll make the whole entering and exiting rooms somewhat more clear. The same with the Locked symbol. Same with the rightclick out of menus. Same with the other points.
The stutters have to do with Godot's shader caching. They're still working on the Godot 4 renderer, so it should improve as time goes on. Godot 5 will fix it, as they say.
I can't seem to replicate the embark screen red tint, but I'll keep an eye out for it.
The cursed item was probably an armbinder, there's a red one that you can equip on your Warrior. It binds her arms behind her back so the arms are hidden. However it doesn't hide the gloves on the arms.