I did create a second site and removed it - could that be where the trouble started? I might not have removed all traces of it from the database or something?
Have you tried clearing the browser cache to make sure it’s not a client side issue? If that doesn’t help, then it really is a problem with OpenEMR itself that has to be fixed. That’s where I’d start anyway.
Thanks - fixed this over the weekend by doing a clean install of 4.1.1 and the patch, then migrating in site and database. The upgrade process did not work for us.