Motion Matching for UE4

Very cool stuff @ .

Im trying to get it working with some of the marketplace packs, that are on shorter loops (root motion, but maybe 1 second) and im having issues with it as it doesnt seem to build the motion keys.

Does this need longer animations? Or its just me having a wrong setup.

I also want to know what exactly are the “motion bones” when you create a new motion matching asset.