Is it just for me that sometimes duting Torulf's route his sprite sometimes appears with his hand cut off and sometimes doesn't?
Update your video card drivers and see if it helps.
Older drivers have been having various issues with RenPy for a while now and there are no plans to fix that, since the user is supposed to keep their video drivers up to date anyway.
p.s. When reporting a renpy VN bug - you should, at the very least, provide log.txt from the game's main directory, as well as a screenshot of the problem, in case of a visual bug. More often than not, it's very hard to help using only a short description of the problem.
He isn't just losing hands, he is losing everything below that point, you just can't see it because his shorts and shirt are different sprites layered above his body sprite. You can try to cause the bug when Torulf is naked and you will see it.
Have you updated your video driver? If you did and the game still does that - upload your log somewhere and link it here. It's generally considered VN developer's responsibility to report to Tom all the Renpy bugs found in their VNs.
Or you can report it to the Renpy github yourself, if you have a git account or don't mind making one. https://github.com/renpy/renpy/issues