Yes, please post any bug you find.
1. I don't use this anyway. I save my objects transparent as an PNG file. When i do so i don't have to choose a colour

This is the way professional studios work. But yeah, seems to be a bug
2. You could just click on a different room and switch back to the wayboarders. This should work temporarily.
1. The "Choose transparent colour" picker in the "Load Graphic" window no longer works.
2. In the "Scene" section of the editor, after choosing an object if you then go to the "Way Systems" tab and click on a "Way Point", the properties panel at the bottom where you can normally edit the character's size etc does not appear. Instead, it remains as the "Scene Object" properties panel.
I will update this thread as and when I find more bugs.