Official Discussion: September 9th, 2020 Development Update

[CptLucky8]

No it isn’t, instead:

Increase distance threshold to see other aircraft navigation and strobe lights at night - Bugs & Issues / Virtual Reality (VR) - Microsoft Flight Simulator Forums

(a moderator has also removed the [BUG] prefix in the title a few days ago)

The gist of it:

@CptLucky8

Detail steps to reproduce the issue encountered:

Just fly FS2020 at night with MP traffic around you: the sky is empty unless you’re 5nm from another player and you can start seeing the other player aircraft nav lights.

In other words, like I said earlier, since the developers will be working in correcting a bug affecting the lights, while at it, it could be worth to also increase their display distance. Because otherwise, even if the lights will show again soon, past 5nm they serve no purpose at all.