One of the new feature of VMware vSphere 6.7 is the full support for Trusted Platform Module (TPM) 2.0 devices both at host and VM level.
But when you are using a TPM 2.0 device on an ESXi host, the host might fail to pass the attestation phase.
In this case, on your host, you will notice a critical error like this:
The vSphere Client does not provide any other information, neither at task or event level. To troubleshoot the potential causes of this problem you can use this VMware documentation.