Map Code Not Working

Hello, my team and I create games within’ UEFN, and we publish them and we just put out a new map (0055-5412-3812) and for some reason barely anybody is able to connect to the map including myself.

This is hurting the growth of the map, and would like to know a solution or a reason on why this is happening, thanks.

(I’ve restarted the game & switched from mode to mode, and same result.)