SkeletalMeshActor Can't use Animation BP + Matinee

In 4.6 I’m trying to trigger events from matinee that set parameters in my character’s animation blueprint.

I have my SkeletalMeshActor set to use an Animation Blueprint and have the correct blueprint selected. However, once the matinee begins, my character goes back to T-Pose and if I try to grab a reference to the animation instance it returns null.

If I don’t play the matinee on level start, the animation blueprint works as expected.