Tap to wake not working after Marshmallow update

[AC Question]

LG G3 on Verizon. Tap to wake/sleep worked perfectly until Marshmallow update yesterday morning. I can tap it 20 times and nothing happens. Occasionally it will wake 10 seconds later, but mostly not at all.

 

[Golfdriver97]

Welcome to the forums. Are you certain you have Marshmallow on your G3?

 

[Mbanks2169]

Sorry it's the most recent Lollipop update, not Marshmallow

I'm the OP BTW

 

[sethyboy]

Try to wipe the cache using these instructions (https://support.t-mobile.com/docs/DOC-11907), then reboot the phone. If that doesn't work, unfortuntely, a factory reset may be in line.