Whenever I start the simulator client and log in, it starts running some ghost simulation that I don’t have queued, and then errors out on that simulation, I can’t queue any new simulations while this is happening, and canceling the simulation does nothing. I don’t have global network activated at this time either.
You might have a corrupted simulation “stuck” in your account. Close all instances of the client you are running, go to the client download page, and click “Clear Queue.”
Solved, you’re my new best friend.