Landed aircraft in multiplayer repeatedly bouncing up and down after landing

[Preendog]

I'm surprised I haven't seen this one here, I've found this bug almost every match ever since I started playing 5 months ago. Apologies if it's already reported.

 

 

If,

 

A plane lands at an airbase,

 

and that plane is a F/A-18 or Su-33 (other types possible, but I haven't observed them),

 

the plane will start bounding up into the air over and over. The bounding continues until the plane takes off again, or respawns.

 

 

 

A track probably won't show the behavior, so here is a video.

 

Other hints

 

-This only happens with landed planes and not to planes that spawn fresh (gear damage maybe?)

 

-It does not happen with most of the aircraft in the game. I've only seen F/A-18 and Su-33 do it.

 

-It never happens to the players aircraft (It must be an issue with updates supplied by other clients to the server, the server passing the info along wrong, or interpolation)

 

-The two planes in the video have fully compressed gear. I want to say this is always true when the bug manifests. This suggests that the gear is damaged, or the plane's network position is subterranean.

 

-I'm pretty sure that, when the bug manifests -all- clients see it, not just one. Usually when it happens multiple people complain about it simultaneously.

 

-The server has 300ms ping-kick, and planes in the video were sub-100. Besides, regardless of ping interpolation shouldn't throw planes in the air. You can clearly see the plane's Y position going hella negative before the pop. Also, the plane's X/Z is always updated correctly as they drive around, it's only Y that gets screwed up.

 

 

My pet theory is that something is forcing the aircraft partially under the ground as part of a update, which causes an energetic rebound either by local physics, or a network sanity check. The rebound is smoothed out by local position interpolation, so it looks like a neat ball-bounce most of the time.

 

If you were looking at the bug without interpolation, it would just look like a plane sitting on the ground, a massive desync where the plane teleports high in the air in one update, then another teleport back to ground. Repeated over and over until the ground interpenetration is solved by the plane taking off or doing something else.

 

 

Edit: No mods, vanilla. Latest public version as of Oct 28. I'll just document it when it happens again, I guess.

Edited October 30, 2019 by Preendog

[BIGNEWY]

Hi this issue was patched and fixed as far as we are aware.

 

If you are still seeing issues please ensure you have removed all unofficial mods ( if any ) and run a cleanup and repair or verify game for steam users.

 

If you still have issues please attach your dcs.log after it happens and let us know your connection type and average ping.

 

Thank you

[Tomas9970]

It was already reported.

See

.

[BIGNEWY]

Was fixed here

 

https://forums.eagle.ru/showpost.php?p=4055581&postcount=69

 

MP. There is a current issue that has been affecting the Hornet, and now the F-14 in multiplayer, users are reporting seeing these aircraft bouncing at times, like many hundreds of feet above and below the surface or carrier deck - fixed.

 

as mentioned if you are still seeing it we would need more information like your dcs.log

 

thanks