Cubase 9 not recognizing Battery 4

I can open the same session in Cubase 8.5 and Battery 4 runs perfectly, but when trying to open the session in Cubase 9 it says it cannot find Battery 4. I downloaded the newest update to Battery 4 and it made no difference

Perhaps check if the plugin has been blacklisted? I just re-installed and don’t have Komplete on my Mac yet, but will double check this when I do get it installed.

Check that the instrument has been recognised in the plug in manager.
Mine didn’t as the plugin mapping wasn’t carried over and the .dll’s for Komplete live in the Native instruments plug in folder by default rather than vstplugins…