Ok here is some thing to consider 1. Start removing one plugin after another untill you are left with just Sky Maxx Pro and Fly With Lua - This will eliminate any plugin interference/bugs My plugin folder looks like this 2. I use version 1.3 of Sky Max Pro (not any of the later updates) - That may not affect it, but it very well could (as I do not know) 3. Try to remember, did you use any other texture enhancements? 4. Check and see if you use Real Terra Haze with the light script (they do not work togeather) 5. If everything checks ok, remove the Light Script then the Releigh Scripts and see if runway lights reverst back to normal. It is hard for me to investigate what may cause this as it does not happen on my side. It could be graphics card, it could be drivers, it could be render settings it could be textures. The only way to remedy this is to investigate and search.. Last but at least.. An update for the black/white missing blinking textures which was reported, this has nothing to do with the script, but most likely resides somewhere else as reported