I appear to have tripped a flag preventing me from scrolling the inventory using my mouse wheel (the buttons work fine). It started happening after I tried to check where the clock would be immediately after sleeping. My menu bugged out for a bit until I left the room, the only remaining issue is the inventory.
Restoring from an earlier save gives me a workaround.
You can see the attached save game if you want to see it.
Sorry if this is the wrong place to post bugs, it seemed the most logical.