Snapshots can't be deleted from gui

Another bug:

I can't delete snapshots from gui. I go to Storage/Snapshots and delete one random snapshot. Then appears a "Please wait" loading circle. And this stays forever...

If I open another tab after 10min to see if the snapshot has been deleted, it is still there...

I even disabled my peroidic snapshot task, to prevent inteferring while deleting snapshots.

Due to the fact that my periodic snapshot task fails to delete older snapshots (https://jira.ixsystems.com/browse/NAS-109546 ) and I even can't delete them manually, I'm running into a serious storage problem! Please help, don't let me wait again for 2 weeks...