A manual post-upgrade action is required. Use the steps below:

1. Login and open the preferences panel on any tab EXCEPT Calendar, then click More Gadgets. Select the Manage Gadgets menu.
2. Click Communication. The Hub Policy Administrator will open.
3. Click "Delete Selected Domain". A Warning will appear - click OK.
4. Click on Save. The Hub Policy Administrator will close.
5. Go back to Manage Gadgets / Communication.
6. Click the "Add Hub Policy".
7. Warnings will appear - click OK.
8. More warnings will appear - click OK.
9. Expand the OpenspaceApp / Publish Topics to confirm the TranslationEvent2 is listed.
10. Click Save.
11. Close the Hub policy Administrator and Logout of Openspace.
12. Login again at Calendar will be available.