As foretold in the prophecies, 10.5 had some bugs. This one still might, but I'm hoping it is working.
While I was on vacation, Spigot apparently decided to pull a sneaky on me and change the internals of their configuration code in a way that broke Magic.
If you are on latest 1.18.1 you will need to update the plugin or it will be broken!
Otherwise you may want to skip this version since it has not been extensively tested.