How to root the FP5 and OTA update - at your own risk

Hello there, I am trying to aplly the OTA as per the official instructions Installation | Magisk
But only the boot.img gets restored with the restore images option under uninstall magisk.

Logcat shows the hash mismatch before the restore images:
[ERROR:verified_source_fd.cc(50)] Unable to open ECC source partition /dev/block/bootdevice/by-name/boot_b: Success (0)

Logcat and then after restore images:
[ERROR:verified_source_fd.cc(50)] Unable to open ECC source partition /dev/block/bootdevice/by-name/vbmeta_b: Invalid argument (22)

I know that the vbmeta image is mismatched, because I patched it as per the official instructions when rooting the phone.
But was that even necessary?

Anyone having the same problem?
Can I just restore vbmeta manually or will that result in a full wipe?

Any advice would be greatly appreciated :blush: