It seems like the default guid for the action layer when you use the VRC-CC client is different, as when I went into play mode with the Av3Em, it kept saying that the action layer was unable to be resolved, and the guid was different for the action layer when I looked at the meta file, and the default guid stored in the LyumaAv3EditorSupport.cs
(Also, I ended up changing the "Assets/VRC/..." paths to "Packages/com.vrchat.avatars/..", not entirely sure if the old path is broken or not, but the VRC SDK isn't in Assets anymore, at least when you use the CC.)
It seems like the default guid for the action layer when you use the VRC-CC client is different, as when I went into play mode with the Av3Em, it kept saying that the action layer was unable to be resolved, and the guid was different for the action layer when I looked at the meta file, and the default guid stored in the LyumaAv3EditorSupport.cs (Also, I ended up changing the "Assets/VRC/..." paths to "Packages/com.vrchat.avatars/..", not entirely sure if the old path is broken or not, but the VRC SDK isn't in Assets anymore, at least when you use the CC.)