***Solved***
The only solution I found for this, was to create a fresh content store and reinstall Cognos analytics. IBM support told me after trying a bunch of fix packs, that the CS was most likely corrupt after the migration.
The only solution I found for this, was to create a fresh content store and reinstall Cognos analytics. IBM support told me after trying a bunch of fix packs, that the CS was most likely corrupt after the migration.