Add Host on Async patched domains/clusters may fail if the Host is imaged with ESXi version other than Async patched ESXi version as that of the domain/ clusters.
All the ESXi hosts are expected to be at same version for expanding the cluster with new hosts. This is the current behavior of the product.
It is possible that VMware does not release ESXi stock ISO images found for the VCF supported ESXi Async Patches. ESXi image zip files are released to the customers.
To workaround the issue, please follow anyone of the below mentioned proceudures to convert the ESXi zip files to ISO files for VCF Day-n operations:
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