'Ok Google' no longer works after updating to Marshmallow

[jonesyvoor]

When the phone is asleep and plugged in if I say 'Ok Google' the phone will wake up however it is very slow to process the query and then when it's ready to deliver an answer it will direct me back to my lock screen and prompt me for a password without providing the answer.

Is there a fix for this?

 

[belodion]

Have you tried a Cache Partition wipe?