fsck init script doesn't work with encrypted bcachefs filesystem

[Nanderty]

I have a secondary encrypted bcachefs partition, which I unlock in my initramfs:
bcachefs unlock <partition>
Once I boot, fsck tells me the following:

fsck                      | * Checking local filesystems  ... [ ok ]
fsck                      |error reading passphrase
fsck                      | * Filesystems repaired [ !! ]

But if I later on umount this drive and run
bcachefs fsck -ARv <partition>
I don't get any errors.
My best guess is that it can't access the passphrase in the keyring. But yet again, the mount init script can and root in userspace can aswell.

Edit: formatting