Multiterm in Trados 2015 - cannot add terms, termbase loading

Hello, I have Multiterm and Trados freelance+ 2015 installed on a 64bit Windows 10 machine. I currently also have Trados + Multiterm 2014 installed. I have a termbase open, and I keep having this problem of seeing "Loading termbases" when trying to add terms from within trados 2015. I do not seem to have the problem in 2014. I have tried everything, including reorganising the termbase, creating a new termbase and importing the terms from the "old" termbase (this worked for one session, but today I again see "Loading termbases...").  I have no problems with opening, adding, editing terms in the standalone Multiterm application.

I would appreciate any help!


Thanks,

Diana