Yes, that is the itch.io version I got. I tested the Steam version and it does NOT have that problem. Makes me wonder if Valve's Proton or something is fixing it or something, but I dunno?
That sounds very likely yes! That's good to know at least, thank you for giving it a shot ^^
I'm really not sure if I can even do something about this sadly. You're the only person person to report this so far, but still, that's annoying...
In any case, thank you again for reporting it and taking the time to do some tests!