Cannot drag prefab from custom package

I cannot drag prefabs from a custom package into my scene (see gif), or into my Assets. Similarly, I cannot drag fbx assets.

Is this a bug? I would like to be able to distribute prefabs for my team to use via Unity Package Manager.

I have been directed to post here by @okcompute_unity from this thread Samples in Packages - Manual Setup

Is not being able to drag from Packages to Assets specific to Prefabs and FBX files, or does it apply to all assets that are not scripts, like Materials, Textures, etc?

@runevision I cannot drag materials and textures either

All right, thanks for checking it. I can see the discussion is continuing in the original thread, that’s good.