Gaps in NavMesh between objects on same level

Hey guys,

sorry if this has already been asked, but I haven't found any answers yet.

I've got a path made of multiple boxes. I want my chars to walk them, but after generating a NavMesh there are gaps between the boxes (as you can see in the attached picture) and I don't know why. Shouldn't walkable objects connect anyway?

Thanks in advance and best regards!

 

I've got the same problem. Does anyone have a solution for this?

 

This can be due to the agent size being too big, either reduce the agent radius or increase your walkable meshes' width.