Thank you for your insights. At least I now know that it's not a shader or incompatibility issue with X-plane 11.41. Perhaps I may have installed or modified some file that affects the lighting in your scenery over past year or two. So I will try and do some digging through at my end to identify the...

Hi, Thank you for your prompt response. As requested I enclose the screen capture (I have a triple monitor set up). The response to your question as to whether I am/was using a modified lites.txt file is - Yes. But before taking the attached screen shot I replaced the original X Plane lites.txt file...

Hi, It is noted that the Las Vegas scenery is intended to be run on X Plane 11 in Vulkan. Having said that, I am running it on Open GL within version 11.41. Leaving a side the issues related to frame rates in X Plane 11.41, I notice that there is excessive bloom and bleeding of lights from especiall...