This issue was resolved vCenter Server 6.7.0b, build 8832884. For more information see: Full Patch for VMware vCenter Server Appliance 6.7.0b.
This issue was resolved vCenter Server 7.0 available at Broadcom support portal.
Workaround:
To workaround this issue, change the SSO password to not include the "/" character. For details on changing the SSO password see How to unlock and reset SSO password in vSphere 6.x.
To collect a log bundle or review log files: