Can you share some feed back on what device you tried it on (phone, or PC)? And if phone what model or viewport size? I tried to test for average screen sizes that it could adapt to, but sometimes certain screen sizes can still need their own layout adjustment on my end.
Also, I made the game engine too and am still ironing out some bugs with the Itch web player. I only had time to test on my GitHub pages version (due to irl stuff). If it only happens in the itch version that would help narrow down the bug to so I can squash it