It was a painful few months but it's fixed. Thanks for being patient.
(Well, sort've... I get a blank white screen at launch for 30 seconds, then a blank grey screen for another 10-15 seconds. But after that, it actually works! This is with v2.0.8. I'd never thought to keep waiting through the white screen. Thank you!!)
It is showing v2.0.8 as a 2016/11/10 release in the Samsung App Store, but their store also shows it near the top of "What's New" today. (I'm sure Samsung have been 'fun' to deal with.)
My email is in my HN profile, happy to help if I can!