Question invisible navmesh objects

[Choochoo1]

So general question, I am trying to navmesh my stages when I click on the object in the object window and click navmesh object, the window opens but my static is invisible. when I open ones I have already done I can see the navmesh but everything else is invisible, does anyone know what could cause this?

 

[Tinuvia]

I have seen this too from time to time, but I can't remember how I fixed it. I think reloading the Creation Kit gets it back, but I don't know what setting makes it invisible to begin with.

 

[Choochoo1]

Sadly that did no fix it, it is still invisible. I tired Alt+1 to unhide all and that didn't work either. Thanks for taking the time to answer.
EDIT: so after re-starting CK again they showed back up. so I guess CK is just being CK. Thanks again.