I upgraded from cubasis 2 to Cubasis 3. I bought all plugins in Cubasis 2. I see that I must rebuy everything. Is this Normal.
You can transfer them form C2 to C3. See details in the Cubasis 3 Forum
All previous in-app purchases can be freely transferred from Cubasis 2 to Cubasis 3.
Please follow the steps, mentioned in this article:
Please let me know if this helps to solve the problem.