after installing the rom on my Mi6:
if I don't change the fstab.qcom - it is stuck in boot screen.
after I changed it - I get "App isnt installed on your phone" on any app I try to start...
I can confirm the encryption is broken. This message comes from improperly mounted /data. TWPR mounts encrypted volume perfectly. If fstab.qcom is not amended the boot is stuck then. The last working version is 9.4.11. I have found a way to restore from this state without losing /data:
1. Install 9.4.11 from TWRP, do not erase, do not format and do not wipe anything but cache/dalvik.
2. Fix fstab.qcom
3. Reinstall Magisk
4. Clean cache and reboot, the first start is quite long
5. if this does not help, install the last stable 10.3.3.0
6. Fix fstab, clean and reboot
7. If this does not help, go to step 1.
This works for me, MI8UD. Steps 1-4 helped to restore from 9.4.26, steps 1-7 and 1-4 helped to restore from 9.5.9. For some reason TWRP backup did not help at all (Data, System, Vendor, Boot)