I do apologise. I just booted up and tried on my N6 and you're right. My bad. Wrong assumption from me.
I didn't turn off encryption no. I think it runs fine as is. Does it wipe the device again to disable encryption? I would like to see if it makes a difference.
IIRC it does wipe your phone, and it made a nice difference on LP, so maybe it will a little on MM as well?
I'm wondering if a manual upgrade to 6.0.1 would resolve my error problem?
The 6.0.1 on the Nexus download website, is that the correct one for the UK N6, as there are multiple 5.x.x but only one for 6.0.1?