Do you ever connect to a Bluetooth device? I do, my car and I did a test today by not turning Bluetooth on. This seems to have stopped the issue of no sound in calls. I have a feeling some kind of process is being used by connecting via Bluetooth to the Alexa device in my car and then is not being released. Bluetooth or sound process maybe? Now I need to replicate the issue and kill processes related to the above to see if I can find what it is. Any thoughts?I have the exact same issue. Sometimes this bug doesn't trigger for days but at times you have to reboot twice in an hour. This rom otherwise looks pretty much bugfree. Anyone knows where to track next updates. There's no link in OP. I found link to 12.0.4 in one of this thread posts, I'd like to flash 12.0.5 the very day it is released to get rid of this annoying bug. Or I may flash Indonesian rom that also has miui dialer builtin.
I know Windows, not Android so this is new to me