Got Pie update for A8+ 2018 on 20th. Noticed two things - previously available phrase blocking facility in messages disappeared and this evening the set was frozen while making a call. Guess freezing is due to One UI issue since restart or power off ...
Have noticed the same issue yesterday... Found that Android system is consuming almost 50% which means it's an OS bug possibly... We are not able to uninstall or disable that anyway... I guess we've to wait for the next update from Samsung 樂