External Lights have stopped working in multiplayer?

[MSFS 2024] Questions & Community Discussions Aircraft
1

We used to have external light indexed simvars as one of the few things reliably communicated across multiplayer, e.g. LIGHT NAV:1

As far as I can tell that’s not currently working (tested with LIGHT NAV:1, 2 & 3)

We’ve had a bit of confusion with “LIGHT NAV” vs “LIGHT NAV:1”, with what’s supposed to work in multiplayer, but as far as I can tell currently neither is working. The SDK docs don’t mention the index, but IIRC those were needed for the multiplayer xfer to work.

Testing might be confused by a long-standing 2024 issue of external lights not being visible in the daytime and relatively faint even at night, so typical users using these for actual lights might not have noticed.

These simvars are essential for communicating very useful information e.g. we can tie the glider ballast dump effect to those simvars, you could do the same thing with the burner effect in a balloon.

Anyone noticed the same issue?

2

I think this is the same bug described in this earlier post: Multiplayer variables not synchronized correctly (landing gear, lights, flaps, etc.)

As far as I can tell, basic simvars like LIGHT NAV:1, used purely as a boolean to control effects, are not making it through multiplayer. I’ll abort this thread and stick to the thread linked above for this issue.