I've had this happen before. I don't know the "why", but I tried all the fixes I know; clicking the W.E. lot to reposition/replace and sometimes there's a duplicate lot on top of another (no idea how that happens) so deleting one of them. Neither of those things worked.

I did replace the world map with ellecharmed's "routing fix". I was curious if for some reason that may be the culprit. Aside from the island itself being just... 'buggy'. I'll take any suggestions. Would be nice to be able to enjoy the world. Thanks.

Island? Duplicate lot on top of another? Maybe if you share some screenshots it will be easier to understand.