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Hi,
I configured a backup of a VM with 2 virtuals disks and all was working ok, but from several weeks ago I'm getting the following error when backing up the second virtual disk:

Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/disk1/Windows2019/Windows2019_1.vmdk'...
Clone: 27% done.---------------------------------------------------------------------------------------------------------------------------------
2021-12-23T17:57:30|  [SERVIDOR] CLVMKFS1 error: Failed to clone disk: Invalid argument (1441801).
---------------------------------------------------------------------------------------------------------------------------------

The % at the fault usually goes from 20% to 27%.
I get the same error with the VM on or off

I haven't found information about "Failed to clone disk: Invalid argument (1441801)"

Any ideas will be very appreciate,
Thank you
Miquel Àngel Guerrero