Packer DRS clustered datastore issue

Hi All,
I’m trying to build a new VM via Packer on a Vsphere 6.x cluster and I would use the DRS configuration to not specify the host and local datastore for the vm creation but I received this error:

2022/08/11 11:06:14 machine readable: vsphere-iso.rhel,error []string{"datastore doesn't exist: Error finding datastore with name DATALAB: datastore 'DATALAB' not found"}
==> Builds finished but no artifacts were created.
Build 'vsphere-iso.rhel' errored after 124 milliseconds 417 microseconds: datastore doesn't exist: Error finding datastore with name DATALAB: datastore 'DATALAB' not found

could you confirm if this configuration is supported?

Thanks,
Marcello