My S8+ keeps waking automatically

[Android Central Question]

For the past few days, my Samsung S8+ keeps waking for a three seconds about 2-5 times per minute. Several conditions I've noticed:
* It does in or out of the case
* whether or not it's connected to power
* whether power save is OFF or MID
* whether or not I close all aps
* sometimes it opens Bixby too

Please advise

 

[Tim1954]

The good old cache partition wipe would be my first move here. It's a fix for many minor bugs...