Originally Posted by samwathegreat
I have seen this issue happen to some people using xposed with lots of modifications, or a custom kernel. If you are 100% stock, I would suggest clearing cache and possibly a factory reset to see if it resolves it.
Are you using xposed or any other modifications?
Thanks for the fast reply.
Totally stock and unrooted. I did a factory reset once, do you mean clearing cache of the Active display app?
Not sure if it's just me, i can't replicate the issue, it just occurs randomly e.g. taking phone out from pocket or pouch, when trying to unlock first time the touch seems not register or the active display lock screen need some time to react?