SU4 1.6.3 aircraft lights not switching off

[GeeStoerty]

ISSUE DESCRIPTION

Description of the issue:

Aircraft lights (especially Landing / Taxi lights) do not switch off properly anymore on several aircraft. Just tested C172 C185 for this so far, both affected. The “flare” effect disappears in OFF state, but the lights remain lit.

Complete clean FS2024 install for the SU4 beta with empty community folder.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?

Always

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

1. load C175 or C185 in free flight (cold dark or running on runway)

2. toggle taxi / landing lights

3. see the lens flare effect diappears, but the lights remain ON in the OFF position

YOUR SETTINGS

If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the User Support Hub.

What peripherals are you using:

[PC Only] Are you using Developer Mode or have you made any changes to it? NO

[PC Only] What GPU (Graphics Card) do you use? 7900XTX

[PC Only] What other relevant PC specs can you share?

MEDIA

upper picture OFF, lower picture ON

Upper picture OFF, lower picture ON

[Azlog]

Spotted this in the A20N as well on SU4 beta

[SagePegasus6181]

Same on the Fenix A320. Only outside view. If you switch it of they will remain on, in external view.

[Azlog]

And same in the inibuilds A350. Nosewheel taxi lights stays on regardless of the light setting

[TCAS42]

On a test in the TBM 930, this issue seemed to affect both overhead lights in the cabin, and the pulse lights.

[Jummivana]

Thank you for the bug report.

We have created an internal ticket to see if our team already has this logged, and if not they will attempt to reproduce the issue and create a new bug report. This item is now marked as feedback-logged. If there is an existing bug report or one is created, we will move this thread to bug-logged.

[B787Pilot3222]

Same issue on the CS777.

[AvengedRobix]

Confirm, same issues with the light.. try more ezternal plane (da42, kit Fox,rans s6s, scout and f35) all with this annoyng bug

[cegc135]

Confirme also with the Carenado C182Q

[OldpondGL]

CRJ interior dome lights.

[ToriDadriel]

ISSUE DESCRIPTION

First, I think the description of this topic is very misleading for the devs. Because it is not the actual lights which are not working, but a problem with the effect of around the light source.

I can confirm this behavior on every single plane, no matter if it is default or third party. The light effect, as in the actual lighting up the ground/sky does work properly and goes on and off. But the 2D sprite effect around that light, which AFAIK shouldn’t even being showing this up close, is always visible no matter the state of the underlying light source. This does make it look from certain angles like the light is always.

And there is also a regression here, because the effect also disappears altogether at a certain distance instead of appearing. This lead to lights looking actually off beyond a certain threshold, which is a behavior that was fixed in SU3.

FREQUENCY OF ISSUE

How often does this occur for you (Example: Just once, every time on sim load, intermittently)?

Always

REPRODUCTION STEPS

Please list clear steps you took in order to help our test team reproduce the same issue:

1. load any plane, turn off some lights at night to see the always on sprite up close
2. turn on the light again, move the camera away from the plane, watch the light sprite disappear

YOUR SETTINGS

What peripherals are you using:

[PC Only] Are you using Developer Mode or have you made any changes to it? Negative

[PC Only] What GPU (Graphics Card) do you use? RTX 4090, recent driver

[PC Only] What other relevant PC specs can you share? AMD 9800x3D CPU

To round it out, some screenshots showing both effects with the default A321LR

First, the sprite being always there

Second, the sprite disappearing at a certain point, while the light is still on

The latter is also very obvious on the nav lights of the ‘Bus

[INTJMastermind]

Ditto in the CowanSim R66 v3.1

[deancbrown]

Same with Carenado F33A Bonanza.

[MrFuzzy1337]

Same issue here. Should be easy to reproduce and switch the thread to bug logged.

[Eiden94]

Hello, also happening in 1.6.5 with the A330:

• LDG/TAXI/RW turnoff light all OFF

It seems to disappear when getting to a certain LOD level

[SmotheryVase665]

Ditto for the Zlin Aviation Norden - landing lights remain on when all power for the aircraft is off.