Test actor with two components:
Settings statics mesh component:
Settings collision box component:
This actor is located on the right to the gif.
His static mesh is alternately attached to another actor and back to himself, and with this the navigation grid is not updated.
http://i.imgur.com/0Uh4Cew.gif
But everything happens differently if the target is a socket of the skeletal mesh
This can be observed at the previous gif on the left side,
Or the same test actor:
I do not understand why in one case the navigation grid is updated and the other does not? What is the difference? And why is this happening? Is it a bug?