Hello, thank you, i'm glad you like the game :)
- Removing cloths is done via R key (at first in story only panties are removable, later on more cloths unlock). For comparison please check the 'Gameplay Walkthru' section above, last video has this story segment with keyboard keys pressed overlay in bottom left corner.
If the issue persists then i recommend creating a bug report via tapping F11 in-game at the bug point > copy the generated bug report (from the game’s folder) and email it to me (+ include a small description of the bug and steps to reproduce it) [ nymphokyun@gmail.com ].
Cheers,
~NK