Quickpaw Jack "stealing" more than 50 gold

Platform, device version and operating system:
Smartphone, Xiaomi Mi A1, Android
Screenshot or image:

What you were expecting to happen, and what actually happened:
I was doing Explore mode (lvl 10) and then this happened. It’s funny because he still dealed 84 (34+50) dmg as expected, and when I paused I saw the CPU 's gold equivalent to 50, but as you can see Quickpaw Jack magically drained all of my gold instead.

How often does this happen? When did it begin happening?
It keeps doing this everytime i play on Explore mode, haven’t tested other modes though

Steps to make it happen again
Play Explore mode whenever he appears on enemy’s team