As the title says. It doesn't matter what world, big or small, optimized or not. Whenever I join off of people, or load into any instance, I'm often just sent back to my home world. It usually downloads the world I'm trying to enter, and rather fade to black and load into it, it hard cuts to black and loads back my home world.

Sometimes I'm even kicked into the Error World and locked into it by being given the "Rapidly traveling" error.

The only thing that has helped has been entering portals made by other users.

I have talked to support about this issue many times, have given so much information. They told me they couldn't figure it out but to make a bug report. I know it is not my computer, as I'm having no issues with parts or in any other application.