Hi there! It's due to a multitude of factors, mainly being that people were asking for better separation. That combined with seperate prices being additive rather than hard set for assets bundles, a complete reworking of the fundamentals for the system, and a bunch more.. It's part of what made this take so long! I was trying to not have to make it a re-purchase, but.. Unfortunately, that's just how it had to be to make this all work.