I use APFS on my external 1tb ssd hard drive. Today the second time I noticed an strange warning after mounting my drive "macOS can't repair volume:…". When I started fsck_apfs what is going on I got the following printout ➜  ~ sudo fsck_apfs /dev/rdisk3s1 Password: Checking the container superblock. warning: container has been mounted by APFS version 1677.0.6, which is newer than 1412.141.1 warning: disabling overallocation repairs by default; use -o to override error: (oid 0x401) nr: invalid o_oid (0xa132) error: (oid 0x401) nr: invalid o_type (0x80000003, expected 0x80000011) error: verification/reading of the nx_reaper object failed: Illegal byte sequence The volume /dev/rdisk3s1 could not be verified completely. On my Mac I'm still on 10.15.7. I did mount my drive once with my iPad Pro with iPadOS 14.0 and worked on it. Did iPadOS change the APFS version? If yes: WHHHY?! Do I risk a data loss, if I work with my drive under the current circumstances of the APFS version mismatch?