Bump, we have the same issue. Is there anything related to having to import an existing 2d mission into 3d editor and saving it under the new SQM format? Atleast its a possibility from what ive gathered.
We are using ACE, TFAR, and CBA as well.
This might be the same issue we are having. However we have been trying to connect to our dedicated server and are using 2d editor missions that were created about a month ago (pre-update) and now we are getting the infinite load screen and cannot join our server. Every once in awhile (1 in 10 tries) you can get in, worked fine for awhile last night. But no changes were made and its back to doing it again.