Can you elaborate on the exact steps you take to reproduce the rotation issues, ideally all the way from starting the app (including how you start it/open it) in as much detail as possible?
It matters a lot on how you got to the place where you observe the problem, or steps you did previously, as I'm not able to reproduce the issue.
I have fixed one such issue in 3.0.1 that was related to manually connecting to a server (or just having had setup a fresh server) before, which didn't actually happened if you already had a server saved and it automatically connected to it. So all steps matter.
Play Next will be fixed again in the next update, it was accidentally queueing the selected file before the current one, rather then right behind it, when I redid playlist handling for the performance.