Problem NavMesh¿? TopDown template 4.25

Hello everyone.
The reason for this writing is to request help for a problem that I do not know how to get out of.
I have created a complete game from a TOPDOWN template in unreal 4.25.
Everything was perfect until when creating the Menu level and accessing the Game level through it, the character did not move from the site.
The dcal looks perfect, and I suspect the problem comes from the NavMesh.
As much as I try to rebuild … when I go back to the menu level and play the game on the mobile device, the same thing happens over and over again.
I’ve been reading tutorials for three days, looking for similar problems but nothing gives me a solution.
Hope someone can help me.
Thank you.