Help Battery usage stats disappeared

[gale65]

Somehow my battery usage stats are gone. The chart is there but nothing else. I tried rebooting and it didn't help. I attached a screen shot.

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[gale65]

update: after a full charge my stats are showing again. That was weird.

 

[Doubleatheman]

Mine disappeared also for the first time the other day, untill I full charged, and then rebooted again.