ROM (21.5.20 / 21.5.12), update with, twrp-3.5.0_10-4-picasso-Hadenix.img
, but i had this issue, when i did wipe cache and dalvik:
Failed to mount "/system_ext" (Permission denied)
E:Unable to decryp FBE devise
But it update and no new problems
NOTE: Why don´t it ask me , pattern to decrytp?