Muted/Blocked players randomly get unmuted/unblocked after 5-10 minutes. Issue appeared on the latest update.
can confirm this bug affects everyone i block and have blocked.. could this be fixed as a priory. its probably safer for all users if this feature was permanent. a block feature should always be permanent lol if a 12 year old whos blocked a sexual predator now has that user unblocked this can cause quite the problem
Fixed in 2018.1.2.