Hey Tommy,
I could have sworn I had tested it without looping and seen it animate, but I see now that it isn’t. I guess I’m losing my mind. I had only asked about looping because frequently people don’t see it playing and just missed it because their animation was very short or something. Instead I just found a case where it doesn’t reproduce 
Anyways, I’ve reported this bug as UE-12219. Thanks for sending this in!!