Flying Brick wrote:I've had this problem before, too. For me, it was caused by using 1x1 pixels in the NPC graphic, which made the NPC disappear as soon as I started the test. Ever since I stopped using those, I never had any problem again. Maybe that's your problem, I don't know

I don't think I have the same problem, as there aren't any 1x1 pixels. Anyways, I finally fixed the problem by changing the size of the NPC. there is a thing about his placement, though:
The place where the cursor is is the only place where I can select the NPC. Is there a reason for this?