Rollback greyed out

Hi,
I installed Rockstor on a VM. After installtion, I added a new virtual hard drive. On this new HDD, I created a share. Then from my client I added a file inside, took a snapshot from Snapshot menu then remove the file. And when I try to rollback the snapshot the button is greyed out.

@Tanto welcome to the Rockstor community. Take a look at this very recent thread that has some more explanations around it.

If this doesn’t match what you’re seeing, then let us know which Rockstor version and OpenSuse version you’re running on.