I've removed Eric from the list. The issue with skipping is a strange one but almost certainly something outside of our control - either a bug in Ren'Py or potentially a corruption in your download. Either way, if the file displays under normal circumstances, skipping shouldn't change that. If you're loading an autosave from an older build and the content you've saved on has changed, that can trip Ren'Py up - again, not really something we can fix, it's to do with how Ren'Py is designed (not with changing games in mind).
I also can't replicate this third issue at all. What steps have you taken to make this happen?