vCenter Server 8.0
vSphere ESXi 8.0
vCenter Server Root certificate recent update has not been updated on affected ESXi with a certificate refresh
Update/refresh the affected ESXi certificates and reattempt the log collection task: Renew or Refresh ESXi Certificates
Should the issue persist after the certificates are updated, Contact Broadcom support.
Similar issue which addresses certificate mode as cause: Error "Logs for this object cannot be exported at this time. Another log export might be in progress" when trying to export logs of the ESXi host from vSphere Client.