1: Unfortunately this isn't very helpful because I have no idea how to reproduce it from reading your report. Well I guess I learned that the bug exists, just need to hope that I also stumble upon it
2: Most likely related to the game breaking beforehand, possibly due to bug 1
3: I wonder how I could do that, since galaxies only generate if you enter it for the first time. Maybe only show it for already generated galaxies?
4: I'll think about that, but is it really necessary to convert 100+ galaxies to progress? Cherry-picking the most efficient galaxies to progress should be the strategy, I think.