I think I was right on the money. Once I charged the phone to 80% (which was the limit I set), the issue went away. So you might want to do a full charge to the limit you set and see if it resolves the issue @Sekti_01 .
Interesting how it broke for both of us relatively at the same time when there hasn't been any software update from Asus for this phone. I was thinking if this was due to my "unusual" charging habit of only partially charging everyday, and doing it l...
I also just found this out yesterday. Not just that, but individual app's "App battery usage" is also grayed out, meaning I'm no longer able to change an app's battery optimization strategy anymore. A restart and complete cache clearing didn't help.