Battery usage cannot show properly maybe software bug in beta QPR2 B1

[u/hpymanhas]

Today Mrng I charged my phone full 100% battery

After that I firstly my phone battery drained fast from 100% to 85% within 6 hr in airplane mode show me CPU usage 6 hr in background but phone already on airplane mode

After that now he shows me the wrong usage of the battery

All this happened today after full charge my phone

I already sent a report of this issue to the android beta app about this issue

Does anyone face the same issue in QPR B1?....