I was having issues with accessing the Unraid GUI. I had installed the Docker Version of Tailscale, and then removed the image and switched over to the Plugin version. I finally got it working after a bunch of tinkering so hopefully this will help others out having the same issue.
Here are my steps that got it going again:
Deleted the Tailscale Plugin
Deleted the `appdata/tailscale` folder
Rebooted server
Reinstalled Tailscale Plugin
Erased the Tailscale Configuration `Settings -> Reset Tailscale`
Removed unraid machine from the Tailscale Admin Console
Kept Tailscale settings at default (except enabled SSH)
Reauthorized unraid machine on tailscale (No exit nodes, no subnet routes, all default)
Everything's working again on my end, I can access the Unraid GUI via the Tailscale IP address and docker containers via their ports. Not sure if this is all necessary or not but it worked for me. Hope this helps some others who are banging their head against the wall on this one.
Replaced the files and I'm back up and running, thanks!