Invisible AI Su-25

[Czechnology]

Experienced this twice now with a group of 3 people while playing on multiplayer servers.

Just for references sake: Myself in the F-4 front seat, my buddy in my back seat, and another friend in a separate F-14.

First instance occurred on 06DEC24, second instance occurred 25DEC24, so there's been an update in between. The F-14 pilot, between these instances, had performed a DCS cleanup of shaders, saved game, etc.

Both events occurred on Persian Gulf, both times it was a pair of Su-25 that were spawned in. We can locate both Su-25 on radar, but we can only visually spot and engage one of them. The second "invisible" one can be tracked on radar, the F-14 TCS and HUD will track it, but it is seemingly immune to missiles and cannot be seen by players - However - Jester is capable of tracking it.

We don't have the logs or video of the first incident as we thought it was a fluke, but now that it's happened twice I've made a point to grab relevant files. We have video recordings of both incidents. 

There's two anomalies between the incidents-

On the first incident, after my WSO had a game crash and reslotted into the back seat he could see in the invisible Su-25 and was able to guide our tomcat pilot into a guns position, where he fired blindly at his HUD cue but scored a kill on the WSO's screen.

On the second incident, we may have witnessed the spotting dot for the Su-25 blink out but the game failed to transition from spotting dot to actual model, we're holding a magnifying glass up to the video and will try to upload any additional evidence we find on that.

Video of FIRST incident:

https://medal.tv/games/dcs-world/clips/jmpv5Qsjf3aZlF0-o/C98Pl922Q2cW?invite=cr-MSxoVVgsMTUxOTA0NDI0LA

Video of SECOND incident:

https://medal.tv/games/dcs-world/clips/jmmq5vwiptdsrBoLj?invite=cr-MSxrUlIsMTUxOTA0NDI0LA

Log files relate to the most recent incident.

Track file is located HERE, exceeds the file size allowed by the forum

 

dcs.log

Edited December 26, 2024 by Czechnology
Added video

[Czechnology]

After sniffing through my own files, I found the track file for the incident on 06DEC24, and someone from the Grayflag discord was graciously able to dig up a tacview of it. In the tac view, you can see us splash the one su-25 we can visually see, then we enter a merry go round of turning cold or blowing through on the invisible second Su-25, with the F-14 getting much closer and taking some fox-1 shots even though he can't visually see it by following his HUD cues.

Track file located in the same google drive as the other incident, found HERE

 

TunaGambler-Tacview-20241206-191009-DCS-Grayflag Persian Gulf A.zip (1).acmi

[Biggus]

Suspiciously like the one I reported awhile ago.  Often leads to a client freeze.

[Czechnology]

6 hours ago, Biggus said:

Suspiciously like the one I reported awhile ago.  Often leads to a client freeze.

Very, though I notice in most of the videos provided for that bug the aircraft is 'flickering', in both of the encounters I mentioned it was just 100%, pure invisible, except for maybe being a spotting dot - Though we're still trying to confirm that particular nugget of info.

[Czechnology]

Additional video of the second engagement

https://medal.tv/games/dcs-world/clips/jmClnN6aS0PPlFUR_/83Urs2FXA55U?invite=cr-MSxJcVMsMTUxOTA0NDI0LA

[Biggus]

4 hours ago, Czechnology said:

Very, though I notice in most of the videos provided for that bug the aircraft is 'flickering', in both of the encounters I mentioned it was just 100%, pure invisible, except for maybe being a spotting dot - Though we're still trying to confirm that particular nugget of info.

Some never seem to render at all.  Those tend to be the ones that cause the freeze.  Flickering is just one of the symptoms with a strong correlation to the unrendered units and client freezes.