Bug - Normal Level up x2?

[Boombustero]

Greetings fellows!
So... Today I was playing Caturday Night Fever. After winning one of the fights, my level 35 Immoral Fiber evolved to level 37... The amount of experience earned wasn't enough for this event to happen.
I'm playing on Android 7.0 system.
Thank you for your attention, and sorry for any grammatical mistakes...

 

[Veeko]

I’ve seen this happen a couple times on iPhone as well.