VMware has corrected this in vCloud Director
The fix is preventative only and will not retroactively correct invalid entries.
To resolve this error and update the invalid entries, the following steps must be performed:
- Upgrade vCloud Director (together with its database) to 10.2.2, 10.3, or later.
- Reconnect the affected vCenter in vCloud Director.
This action will update the invalid database entry.
Repeat Step 2 for each vCenter affected by this issue.
If the issue persists after performing the steps listed above and the database still contains non-GUID entries in the UUID field, please get in touch with VMware support.