[Solved - ish] It looks like the issue here was the interchange plugin. After removing that plugin and reimporting my characters as well as animations (they needed to be removed entirely from the project, I could not reimport with a dialog) The character’s morph targets began working as they have in previous versions. This issue is pretty detrimental to workflows involving non-metahuman characters that use live link face blendshapes, I hope this bug gets fixed soon.