I didn't understand what you meant by "The instructions have a collision and are only rendered on one side."
I completely understood the bug when exiting the PC, thank you very much. Normally, in PC builds, you use Esc to exit, but in web builds, Esc removes mouse focus, so I had to assign other keys to it. When you press Esc while at the PC, it returns (of course, it first removes mouse focus, so you have to press it twice)