Why does my NavMesh work playing in a level but not when I open level from main menu?

Hello, I am using 4.26.1 on a multiplayer project. I am using the ZombieSurvivalTemplate from marketplace. Everything has worked fine for a long time but recently I tested from the main menu and the enemies will not move. They still react when the player character moves in from of them but otherwise they act like the navMesh is missing. When I playtest from inside the level itself everything works as normal.

Thank you,