Keep forgetting to ask about this but can not seem to figure it out. I have a modified effects file that eliminates the rocks/ice chunks kicked up while taxiing on unsurfaced terrain. The screen shot below shows this with a taxiing Beech 18 in Mobile, AL
(Click to enlarge)
The next screen shot shows what happens when I move location to northern latitudes. This is in Valdez, AK which I believe is default scenery north of Pacific Fjords and Tongas X. In fact I even moved the A/C to Spokane, WA (KGEG) because that is outside or any ORBX scenery I have installed, but in a northerly latitude. It also happens at that location.
I have checked with ORBX, TogasX and SnoDogs scenery all disabled, it still happens. Why would the effect show on hard surfaced airports at all? This was not happening when I first did the modification to the effect.
Scratching my head, might just have to have a beer to figure it out!