Hi jomeijackson. Thanks for the bug report. These are useful.
1. This combine items issue is a new one. I'll investigate further.
2. I am working on the Dialogue System to use flags, but it is currently under-featured. However, the Inventory System is clever enough to know not to add duplicates.
3. I'm currently trying to solve some pose issues in H scenes where arms and legs do things they really shouldn't :)
4. Not sure what you mean by "graphics do glitch". Can you be more specific?
The game is not yet optimised so some lower end computers can struggle.