Apologies if this has been answered previously

I am trying to connect the borders between 2 exterior cells. I line them up and hit finalise - then all of the navmesh on one side of the border disappears, but the green border line still appears on the border of the navmesh in the opposite cell.

I've watched Youtube videos on navmeshing borders and trawled forums but can't seem to find anyone else with this particular problem.

Any help is much appreciated!

bump

I have never had that happen . And i am zoomed out enough to see 9 cells - the one i am interested in and all its neighbours .
how beefy is your rig? or is there a preference you might have changed?

Problem has been solved...

No preferences or any settings changed, have navmeshed plenty of interiors previously. I spent a while navmeshing the second cell over and over but every time I hit finalise it would just disappear.
So the solution to the problem? Overnight I had my partner upgrade my computer and suddenly it worked
The only difference was when I went back to try again, I navmeshed each border triangle individually before navmeshing the rest of the cell and to my utter surprise it did what it was supposed to do.

Thanks anyways shalani