i using aosp ex so i haven't try. if you still can not solve,try this
EDIT: it works but still settings app search bar not working and say com.android.phone keep stopping.However, telephone services are working
it made it easier now. wipe,only kvt_albus flash and install system img gsi,reboot,done.You can update gsi or you can pass a more stable gsi :victory:Honestly i don't know what did i do to make it boot. I don't remember, so don't whant to touch anything in the recovery :laugh:
*Prays for Mod support*
https://forum.xda-developers.com/showpost.php?p=72601804&postcount=2 does this help?