Android app V3.43.2 is out (previous was V3.42.1, which fixed Owl crashes between lessons)
just wanted to let you know that V3.43.2 has been published on 03/08/2017.
ChangeLog: Not available
Play store comment "New functions / Neue Funktionen":
EN: "Fixes of several problems and speed improvements"
DE: "Behebung mehrerer Probleme und verbesserte Geschwindigkeit."
V3.42.1 was working fine in online mode on Bluestacks@Windows and the new owl which is shown between (3) lessons did not crash with this version.
All my tested 3-4 Android app versions however have stability problems in offline (cache) mode, terminate (crash) themselve, do not start again or fail in syncronizing the online server tree vs finished offline lessons if the app is able to start itself and shows the splash screen or tree for ~1-3 seconds.
This problem is already described in a troubleshooting thread by me, the bug has already been reported to DuoLingo's ticket/help system.
So far I have got no DuoLingo developer/staff feedback if they are aware of those OFFLINE problems (on Bluestacks), are working on a fix (they do not assist me in tracing/debugging the cause of the problem) and for what version they plan to finally fix them.