Just wanted to share something i stumbled across recently relating to missing runways within the Southampton area of ORBX add on scenery..
For me, it was Lee-on-Solent, my local field where i take lessons (EGHF), so missing parts of the runway was a bit of a disaster, but for this field, at least, there is a solution:
If you have both Orbx England and Orbx Southampton, there appears to be an overlap which causes the missing scenery, so what you need to do is the following:
In the Orbx England Scenery folder, locate the 3 EGHF files
MOVE them from the EU England 'E