Failed to mount /[name of directory]. Group is unresolvable and so the mount fails. (4307510)

There is a line in /etc/fstab, a remote (NFS) directory with a "gid=" option that references a group which is in AD.  Vasd gets started before the mount is attempted. 

Errors from the log:

Dec 10 11:20:45 test10.dev.int mount[994]: bad option: gid="sftponly"
Dec 10 11:20:45 test10.dev.int systemd[1]: sftpx.mount mount process exited, code=exited status=1
Dec 10 11:20:45 test10.dev.int systemd[1]: Failed to mount /sftpx.

Add an 'x-systemd.requires=vasd.service' option to the fstab entry.

Example:
//hostname.dev.int/data /sftpx cifs vers=2.0,rw,_netdev,x-systemd.requires=vasd.service,uid=testuser,gid=sftponly,credentials=/etc/text.txt 0 0