From my experience i got this answer:
UE4 does not support the majority of android phones. I tested the same project on a samsung S(Don’t remember the number. it was a stronger hardware phone) and all worked ok.
At that time, i was using UE 4.8. I have no idea what 4.13 offers as i’ve never tried mobile development ever since.
If you find out something I would like to know too.
Have a good day v.el 