I updated my engine to version 5.3, and I’m having issues with the nav mesh on the ground of my city, which is generated using hierarchical instanced static mesh. As seen in the image, when 4 tiles of static mesh floor are placed side by side, the nav mesh is generated without problems. Now, when I use HISM to generate the tiles, they have this strange gap between them.
Does anyone know why this is happening? Using the same code in version 5.1 didn’t have this problem.