Default VOR & NDB generic objects WILL show!

No matter what I did these objects cannot be deleted.
I revised the altitude of the default airport and edited everything I needed (runways and taxiways parking positions exclusions etc). I deleted the objects for VOR and NDB (not the navaids but the objects). However they are still there.

When I open the stock airport and delete those items without revising the airport they dissapear.
In both cases I save and compile the airport and place the files in the same folder. The only difference is that in the case that the objects are not shown i do not revise the airport altitude.
Could this be the reason?