Workaround works fine but only when I put arma3launcher.resources.dll to both "en-us" and your language ("ru-ru" in my case) folders. After that I got error about missing Ultra settings and fonts in launcher has been changed to funny ones but I successfully connected to server. Tested with 4 teammates - working the same way for all.

@FrancescoSkuya please look at my ticket -> https://feedback.bistudio.com/T155335
Issue is similar but in my case it was Type_10 (public variables).

This issue is not resolved. It occurs on every 5-6 hrs of playing (~12-15 hrs in idle mode - no players) on Linux Dedicated server without mods.

I have ASUS ROG Spitfire 7.1 usb headset and fixed this issue with next workaround:

1. open pulseaudio preferences and enable "Add virtual output device for simultaneous output on all local sound cards" checkbox.
2. set this virtual device as default
3. reboot system
4. set volume on speaker and mic on "default" soundcard via alsamixer > F6 (select sound card) > - (default) > F5 (view: playback + capture)

I know this is quite stupid question but did you physically restart server? I had exactly the same issue after update to v1.68 and it fixed only after Linux restart.

! In T124761#1604484, @kagotza8 wrote:
Though you'd have to use the x86 version of steam afaik. Arma doesn't speak to the x64 steamclient

In T124761#1604476, @PWH_b0k wrote:

Copying steamclient.so didn't work for me :( I still get the error:
Warning Message: You cannot play/edit this mission; it is dependent on downloadable content that has been deleted.
a3_characters_f

Confirm, this fixed issue for me too, Thanks a lot!
However, I have x64 linux system so I did:

Please change topic title. This is not RC already, this is release.

Confirm the same on openSuse Leap 42.2 x64