Logic Pro X does not index any loops.

I recently moved to a new iMac 5K and moved my loop library back from an external hard drive into ~/Audio/Apple Loops

Regardless of restarts, forced re-indexing in the loops menu, trying to drag the loops into the browser or even re-indexing using GarageBand I can't for the life of me get any loops to show up in the browser. They do show up in GarageBand, but the loops menu is showing an endless scrolling lists of loops that breaks before I can get to the end and select Re-index loop there.

I am currently trying to install additional content in GarageBand. The option is greyed out in Logic Pro X.

I have deleted all index files in /Library/Audio and ~/Library/Audio

All loops are currently under ~/Audio/Apple Loops and nothing in the root library.

Any ideas on how to fix this? 10.10.1 and Logic Pro X 10.0.7

I am an experienced Mac and Audio user (as you can see from my troubleshooting above). But this one has me stumped.