John Woodward - 2019-04-29

So I tried to mount my hidden volume today and got this error...
ERROR: invalid VBR checksum XXXX (expected XXXX)

Is this a corrupt file, the file appears to be okay, has the same filesize, Ive ran chkdsk, and fsck.
any chance of recovering this/ troubleshooting?

Oh and the outer container still mounts fine.