It seems there is some new way lighting/models for default tracks loaded in are handled, this seemingly creates shaded lit spheres for planes loaded by KML and at night these are hard to see, you can mess with the lighting etc to get them more visible but when you load 20 planes to recreate landing lights etc it gets hard to deal with, when you just want bright easily visible dots to line up to a video.

Perhaps some sort of non lighting model affected marker needs to be used for planes loaded by KML as a default.