problem

We are encountering an issue while creating volume snapshots on VMs hosted on XCP-ng 8.3 with FC primary storage.
The first snapshot is created successfully, however any subsequent snapshot attempt fails.

Error
The snapshot job fails with the following error:
failed to getVhdParent with args isISCSI

versions

Component Version
CloudStack 4.21
Hypervisor XCP-ng 8.3
Storage Type Pre-setup Storage over FC
Primary Storage Fibre Channel (FC)

The steps to reproduce the bug

snapshot of the volume → Success.
Attempt to create the second snapshot of the same volume → Failure.

Logs:
logs.txt

What to do about it?

No response