I'm trying to move my Music Maker 2020 installation from my old PC to my new one. I've uninstalled it on the old PC already. When I enter my serial number into the program on my new PC, it tells me "You already own all content from this serial number, you can download this in the Store." I go into the store, and I look at the corresponding entry (Music Maker 2020 Premium Edition). There's no "download", just "activate edition" and "purchase". I am logged into the store. I go to activate edition, and it pulls up the same dialog box I already tried to put my serial number into. I put my serial number in again, I get the same result. I already own all content from this serial number, etc. etc. This leads to an endless loop. If I click purchase, it just gives me payment options to buy another copy of the program. I go to my downloads section, and there's nothing about Music Maker 2020 Premium Edition in there, just all my purchased content from when I had it activated on my old PC. What do I do? How do I activate my program on this computer?