Premultiplication issue

First time posting, so if there is a typical format for posts that I'm missing, please let me know.
v15.0.0.086
I've got a graphic with alpha that has been premultiplied. Clip attributes are set correctly to Premult. When I put it on the timeline in the edit tab over a background, it views correctly and renders correctly. If I use the same graphic in the fusion tab merged over a background it views correctly in fusion, but in the timeline, it mixes between showing properly when the player is stopped and showing a black edge when playing. If caching is on, it's a mixed bag, often flipping back and forth between prebuilt and straight. Beyond these timeline issues, it seems to always render incorrectly out of the deliver tab. Any help would be appreciated.
v15.0.0.086
I've got a graphic with alpha that has been premultiplied. Clip attributes are set correctly to Premult. When I put it on the timeline in the edit tab over a background, it views correctly and renders correctly. If I use the same graphic in the fusion tab merged over a background it views correctly in fusion, but in the timeline, it mixes between showing properly when the player is stopped and showing a black edge when playing. If caching is on, it's a mixed bag, often flipping back and forth between prebuilt and straight. Beyond these timeline issues, it seems to always render incorrectly out of the deliver tab. Any help would be appreciated.