I have Infinite+Vista, a very different configuration, but I was curious to see if any of these unsolved bugs also happened to me. Truth is I hadn't noticed any of them before because my workflow never leads me in those directions that lead you to find those.

5, 6, 7, 8, 9, 10, A, B - I just confirmed that don't have these bugs in my system.
11 - yes, I confirm the same behavior as yours. As I almost never use undo, it's not a problem to me.
12 - yes, I confirm the same behavior as yours. As I never use auto-exposure nor the preview window, it's not a problem to me.

Currently, I don't have any unsolved situation with e-on.