Snapshot left on VM after Backup
We are using Acronis Backup for VMware Agent (build 9.2.10535) on ESXi Host (5.5.0 Update 2).
On this host we have 10 VM´s (Windows Server) for which I have a daily backup with Acronis. Backup is performing without a problem.
Problem is that backup is leaving snapshots on VM´s and because of that I cannot do changes on VM (for example resize hard drive). For some changes on VM, I need to clear all Snapshots and only then I can do change on it.
Snapshot name looks like: 2%2f17%2f16 12:16:12 AM (see screenshot)
Please advise me how to remove these Snapshots from VM´s - In the past, I remember that i have tried to delete it in vSphere Client, and then I had a problems with vmdk hard drive files (lock on files) and VM did not want to start / Power on.
Also, please give me info if I have to do some changes on VM or backup task, in order to clear that problem with Snapshot leftovers after backup.