Failed to create agent because there is no valid NavMesh ONLY on mobile device

Hey I'm having a weird issue I can't figure out. Things work fine from the Unity IDE but when I run the game from a device like an iPad, I get this error.

Code (CSharp):

1. Failed to create agent because there is no valid NavMesh

And the agent are placed off the required Navmesh. It does get placed on a near by navmesh which I don't want.

I'm using the Navmesh surface script to bake the terrain. I wonder if there's a timing issue where the navmesh haven't finished loading or something. I tried using LoadSceneAsync instead but got the same error.

Any ideas?

 

I found a hack where I agent.enabled = false on Start() or Awake(). Then turn it back on right after Start().

 

Im currently having the same issue no matter how many times i reset the player and cube its connected to its not a valid navmesh

 

This has long been a problem in Unity and it just pops up randomly. The only way I could solve it was to create the Navmesh Agent component after the game was started and plug in the variable values at run time.