Subscribed to custom domain, but initial assigned domain still works?

I setup my own Minecraft server with playit a couple weeks ago via the Docker method, which has been working great. Since then though, I’ve seen a handful of bots try to access my server every week. A few days ago, I decided to subscribe to a custom domain to avoid that from happening and put my mind at ease.

However, I’m still seeing bots try to access my server. I just tested that I can still join my server using the initial playit address assigned to it. My server has been restarted at least 3 times since activating my subscription too btw.

Should I just recreate a new agent and transfer the tunnel, or is there a known workaround? Would love to stop seeing random bots in my logs. Thanks!