Editor and Game freezes when tabbed out too long

Hi , Can you send me your Email to (at) .ch, for send you a download link? About it is a marketplace product, where i get the freez (new update i making), So i can’t link it here.
What i find out, if i remove the generated nav mesh, then it work without freezing. But i need to have a Nav mesh. After generate the nav mesh again, it freez.