Problem
After a live migration snapshots can not be seen any longer in UVMM.
Environment
You see the snapshot still on the command line:
qemu-img snapshot -l /path/to/storage/disk.qcow2
and you can remove it with:
qemu-img snapshot -d 1 /path/to/storage/disk.qcow2
Solution
Upgrade to Errata 383 for UCS 4.3.