I'm searching Playable Director in Ecosystem and timeline actions aren't coming up. Unity 2021.3.11f1, Playmaker 1.9.5, and Ecosystem 0.6.11
Update: I was able to get Eric VanderWal's assets to load into Unity but the Ecosystem still isn't finding timeline actions. We're using Plastic SCM which may be complicating things, but in general I'm confused as to how to load the PlaymakerCustomActions that contain everything.