Did you have the ‘offline’ selected in the asset library in 3.3?
3.4 has completely changed the way the asset library is structured.
I had offline selected and the lib was screwy, once I unselected the offline option and then re-selected it (telling it to re-download everything) all was well.
My asset lib in 3.4 is working perfectly.
You're awesome. That seems to have done it. After unclicking the offline assets, it worked fine. I'm going to be re-downloading soon, but I have every expectation that it will work. Thanks.