You shouldn't leave us hanging like that.
Current on IPP 12.9 G2 (AT&T)
iOS 12 Issues
1. No IPv6 on LTE on IPP (had it on 11.4.1) Have AT&T Carrier update installed. Issue existed on GM
2. After swipe Left to delete an iMessage entry, Done is stuck in upper left corner - need to kill in Task Manager to fix. Sporadic
3. Screen Time is incorrect. Seriously under-reported.
Issues from previous versions
1. Intermittent screen freezes
2. Default email incorrectly reports the number of unread emails
3. Default calendar alerts intermittently alert in Silent
4. ASK keystroke issues (at time a single keystroke will generate multiple characters)
5. Various other issue tied to non default apps. Will check after a couple of app updates (ex: Badge alerts will not go away immediately after addressing them)
These are all on the IPP.