Moreover, on my Zenfon 2 (Android 5.0) 1.3.4 won't start at all, even when upgraded from 1.1.6/1.3.3 - immediate crash... 1.3.3 clear install performs sluggish, but upgrade from 1.1.6 - runs perfectly.

Resume: 1.3.4 runs well not on all devices, which operates well with 1.1.6/1.3.3