So, I use to have the same problem when I would teleport to an actor variable.
Unless you’re putting the Teleport code inside the Level/Map Blueprint and using a Trigger Box, you need to “Get actor Class” then choose the actor you want to teleport to, I recommend also promoting it to a variable.
There’s another “Get Something Class” , but I cant remember what it is lol
But this method works for teleporting to Actors, as seen in the image attached.