It happened a few more times. It doesn't restart all the time. 80% of the time , the screen goes black and it's unresponsive for a minute and then it returns like it just rebooted. It mimics like it has lost sync? (i think) Example my data is no longer blue but is white and the clock&weather content in my circles widget vanish and appear again.
Other times I have to hard boot.
It mostly happens while using bluetooth . And sometimes when I get a message on whatsapp while the bluetooth is ON.
Have you tried UnInstalling Whatsapp to see if everything works better...Uninstall...Reboot...See if there is less Reboots...
Its very Possible you have Old Data from other sources conflicting with this ROM or Any ROM for that matter...
Its Bubba