Random client crashes

[Myshko1]

I have a problem with client crashes on my CS2 server and I would appreciate any ideas.

Recently I configured MultiAddonManager to load multiple custom addons containing different models. After that, players started experiencing random CS2 client crashes (the game closes completely) without any error message. I checked every model individually and everything seems fine. I also tried disabling the plugins related to skins: VIP Skins + Pisex Shop Skins However, the crashes still happen even with these plugins disabled, so I am not sure if the addon itself can still be causing this issue. The server itself does not crash. Only clients disconnect/crash. The crashes usually happen at the beginning of a round, sometimes after 3 minutes, sometimes the server can run for 50+ minutes before it happens. After a crash, when players reconnect, it can sometimes happen again to one or several players.

During these crashes, the server console starts spamming messages like:
[#2502887096 UDP steamid:7656118347816777@185.45.33.227:98373 'FlostRing'] 22 reply timeouts, last recv 17899.6ms ago. Sending keepalive.

Could this be related to the addon, models, particles, or some client entity issue? I am trying to understand what could cause a complete CS2 client crash without any error.

Because I even turned off all plugins, except MultiAddonManager, and I catch more players, without it there is no such thing, the server is on Linux. Yesterday I created a new addon in the workshop and entered it in the cfg and it started

[2vg]

suspect something within ur addon's assets is likely the cause

[Myshko1]

But the models in the addon cannot be the cause because I completely disabled all plugins that use these models, tested only with MultiAddonManager and Resource Precacher and the crashes were still there. I don't understand what the problem is

[notkoen]

What map are you testing these changes on? The most recent engine sync introduced some regressions that can cause client crashes.

[Myshko1]

Can you please tell me what date the last engine synchronization was? I'm testing on the Sandstone map, but the crashes occur on all servers, even on the regular de_mirage map, so I doubt that this is the problem. The question is why this started after I downloaded a new addon, before that there was another addon and everything was fine, and I downloaded a new one and it started on all servers at once, very strange, this problem has been going on for almost 3 days.

[Vauff]

Last engine sync update was on July 8th.

This would be an issue with the contents of your extra addon(s), so I'll close this as it's out of scope of plugin issues.

Some other things to keep in mind for diagnosing:

• Precaching is still, in a sense, loading those assets on the client, while I haven't heard of crashes due to precaching bad assets, what you've done so far hasn't ruled this out
• Addons fully mount into the game filesystem, and as such if you are overriding any default files/paths the game normally uses by default, these can also bring client behaviour changes even with no additional plugins present