WP Multisite Subdirectory Custom Permalinks 404
I’m running a Multisite Subdirectory setup with the following structure.
Example.com/ (main site)
I’m trying to achieve the following using a custom structure in the permalink settings:
It works for the main site however it gives a 404 on the /en-us/ site.
I’m also running the latest version.
I must be missing something? Any help is really appreciated.