Version 6.2.1 is now live in the Play Store with lots of bug fixes, a few new features and upgrades to the underlying framework which should make the app work a lot better all round!
However I have had one or two reports of settings being lost during the upgrade. Nothing has come up in my testing, nor from the Beta trial so please make sure you backup before updating - just in case...
Now that I'm back in civilisation again and can start to code again, I'm making some great progress on the rewrite. It will feature proper alignment with Material Design, a stack of new features and allow me to develop code much faster and easier. I'll finally be able to implement some of the features I dreamt of all the way back when I started playing with developing this app. I'm targeting a Feb release date, so stay tuned!