I have an issue with the flood/apron lights at Zurich prof.
When you load the scenery from the menu there is no issue. But if you load somewhere else and fly to Zurich some of the flood/apron lighting appears around the airport during daytime (see pictures below). It can also be triggered by spawning at Zurich, slewing away, and then slewing back to the airport.
If you park your aircraft below one of the lights it lights up the cockpit, so it's clear that it is some kind of dynamic light and it gives quite a performance hit during the day because of how bad DL performs.
Windows 10 - P3D V4.2 - Zurich prof V1 fresh install.
Fresh Load with no issue:
After flying to the airport triggering the bug: