I combined the running shoes and the bunny hoppers to the empty agglomeration and while it still kept the bunny hopper's ability of no fall damage, I no longer have the jump boost from it nor any of the running shoes abilities.

This is a problem with anything placed into an agglomeration. Using an agglomeration bricks the trinkets in 1.21.

Accessories builtin API for such has bugs that prevent some features of such to not work and issues within Accessories TCLayer would be the cause of Artifacts not working.

An update will be come out coming up

Seeing as this not a Things problem, I'll be closing this issue

Cheers