Yes! That was it. Thanks a bunch! Looks like another asset called Quick Outline was interfering with it. I'll see if I can change some stuff in QO to make them play nice.
Imported BD to my current project and I'm getting:
Assets\Behavior Designer\Runtime\Tasks\Unity\Renderer\SetMaterial.cs(36,33): error CS0029: Cannot implicitly convert type 'Material' to 'UnityEngine.Material'
Not too sure how to solve this one. It works fine in a fresh project in 2020 and...