When you attempt to export host logs from the vCenter Server UI, the export fails with the following error message: Host logs for esxi cannot be exported at this time. Another log export might be in progress.
Additionally, you will observe the following log entries in /var/log/vmware/vpxd/vpxd.log
yyyy-mm-ddThh:mm:45.253+08:00 warning vpxd[06142] [Originator@6876 sub=CryptoManager opID=q-109218:h5ui-getPropertiesForObjects: 1189910562 :HostPropertyProvider:545353-bdqp-h5:70066820-c6] The session 52751b91-0ab0-17e9-e398-21270555b0b of user <DOMAIN>\<USER> does not have privilege Cryptographer.Access on entity [vim. HostSystem:host-12, <ESXi_FQDN>].
vCenter Server 8.0.3
ESXi (TPM-enabled hosts)
When ESXi hosts are configured with a Trusted Platform Module (TPM), host operations involving configuration or diagnostic data require specific cryptographic access rights. The assigned user role lacks the required cryptographic privileges (Cryptographer.Access) to perform diagnostic exports on TPM-enabled ESXi hosts.
To resolve this issue, apply the appropriate cryptographic access rights to the affected user role:
Log in to the vCenter Server UI.
Modify the assigned vCenter Server user role to include the Direct Access privilege. This is located under the Cryptographic Operations permission tree.
Apply the updated role.
Re-attempt the log bundle export
Below kb can be referred for non-TPM ESXis for similar issues,