Hey 0vr,
Have you tried setting an Actor variable to be Exposed on Spawn for your blueprint that needs to take in the reference? When you use the Spawn Actor node and point to that blueprint you need to spawn and recompile, the Actor variable will become available in that Spawn Actor node.
If that’s not what you’re looking for, could you provide a little more detail on what you’re trying to accomplish?
Thanks,
-Steve