See the following recent forum thread for an example of this:
Where @alex549us3’s failed import report looks pretty much identical to yours. And in that case:
So you may be seeing the same issue with timing likely. It can take quite some time to build quota info and that can throw the btrfs import process some how where it looks like a prior share mount (I’m assuming “movies” was a share / btrfs sub-vol) mount attempt failes the entire pool import. We mount not only the pool/btrfs-volume but each individual share/btrfs-subvolume.