BUG - Bullet Trace Reset

Sometimes Soldier Eddie Skill "Bullet Trace" doesn't trigger.
It does not happen every time, sometimes it works normal. I could not find a pattern of when it happens or not. But sometimes the RESET is only triggered when i kill 2 enemies, and sometimes does not trigger at all.

1st example: Hard Difficult | Kingdom Of The Sands \ 8th Stage \ Powerslave \ 2/5

https://youtu.be/UngT0_kP70M

Sony Z3 Compact 23.5.A.0.575 - Android: 6.0.1