Use Magisk and Magisk hide.
try flashing stock again and see if works or not, or try using a different headphone
You shd disable magisk under root options in aroma for moro to have unrooted install. Do a dirty flash of v5 to retain data, and then reinstall moro with this option to stay unrooted.
Follow thumb rule of wiping cache and dalvik and reboot system. If it continues to back to cronos and check if its an issue wuth morokernel and your app
morokernel fixed the battery percentage issue for me
press and hold power, volume down and home. your phone will boot into download mode. press volume up. then press and hold same key combination until screen turns black and then move your finger from volume down to volume up and keep pressing them till you boot into twrp. then do what you want.