Base layer pauses when switching layers

Hello all,

Currently trying to update my project to the latest edition, coming from way back in 5.0. I have animation layers that worked perfectly fine before. When I change layers, my base layer pauses animation completely while my 2nd layer loops like it should. If I take the mask off of the 2nd layer while in-game and attach it back onto the 2nd layer, all of the sudden I get the behavior I'm wanting. Both 2nd and base layers loop accordingly at the same time. What is causing this and how can I fix it? Layer is set up on Override with Weight of 1.

 

Disregard. Casing was wrong for a string bool in my animator/script that was causing the pause. Always something.