[Aviar]

I managed to duplicate the mysterious case of the 'Invisible Wall'. I used the same map and same general location.

I laid down a Test Runway 5. Then I laid down a Red Home Base attached to the Test Runway. Then I enabled Air Start.

I spawned and started flying low circles around my Home Base icon. After a few circles, I just exploded. There was no message about any kind of AAA, but I definitely did not hit the ground or any other object (no other objects on the map anyway).

I have no idea what is causing this issue but I have attached the DF map if anyone is interested.

EDIT: Ok, I believe I figured it out. The problem is you are flying into the invisible Test Runway, which does not lay flat to the terrain. To show you what I mean, I replaced the invisible Test Runway with a visible one (see the screenshots).

So, depending on where the mission creator places the Test Runway (like on the side of a large hill), you may indeed run into this issue (no pun intended) from time to time.

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