Basecamp 4.3.1 database and lists are corrupted after update from 4.2.4 to 4.3.1

Former Member
Former Member
After the update from 4.2.4 into 4.3.1 is my whole database gone. The routes and tracks etc are still there but not anymore placed in maps and lists.
Also loading happens terrible slow. Many minutes. Going back to an older backup results in errors during startup of Basecamp.
Basecamp for MAC runs as before after restoring to my older 4.2.4 version via Time Machine.
Does anybody knows what is going on with Basecamp?