Thanks for the bug reports! They've been very helpful.
I can confirm and have fixes coming for the missing XP bonus and items not being found inside bags.
I have a hunch about the Voidlight bug, will try it out.
The walls and background disappearing sounds pretty crazy. And I am not sure why the game would crash at low resolution... I'll have to investigate. Thanks for bringing it to my attention. If anyone else encounters the same bugs let me know.