I'm using ESP8266 (nodeMcu) in this case while the APP is on Galaxy Note 3 and 4. It seems like on 3 it happens less frequent.
No problem with that, the problem could be to catch the issue, as it is not that frequent!
And a note: I've almost had a heart attack minutes ago! I opened my note 3 app, where an app version was still 1.16.9, and noticed that one of my project, full of widgets just DISAPPEARED (after asking for hardware first). Right after upgrading everything came back to normal. UFF!