Hi everyone, further update from here… my TT Enterprise Stack Cloud-Hosted server was updated from v3.7.2 to v3.8.1 again at about 3pm UTC yesterday by the TTI team after the hiatus and eventual rollback to v3.7.2 from 2 weeks ago.
I have again forced a couple of devices to join and everything worked correctly. Looks from here like v3.8.x is now working well.
Github is now showing v3.8.2 as the latest release.