Specific servers missing from browser

[Dct.F|Levente]

I have an odd issue. My servers browser doesn't show some specific servers, but I see many others. I also don't see this server under Favourites and Recent (I see others).

I tried:
(Based on this: https://www.reddit.com/r/joinsquad/comments/1fd3csu/no_servers_are_showing_up/)
-Clearing filters, disabling ping filter, etc
-Verifying game files
-Deleting config files in ..\AppData\Local\SquadGame (I restored them after it didn't fix my issue)
-Changing the Steam->Settings->In-game->Server browser pings/minute to 500, then restarting Steam
-Addinging the following to ..\AppData\Local\SquadGame\Saved\Config\WindowsNoEditor\Engine.ini:
[OnlineSubsystem]
PollingIntervalInMs=100
-Clearing DNS cache with "netsh winsock reset" + "ipconfig /flushdns" in Windows terminal (admin mode)
-Joining the server via a Steam friend. I played 2 matches then quit; server is still not visible under "Recent"
-(I contected the clan running the server, I'm not banned or anything like that)

Anyone experienced something similar? How did you fix it?

TLDR: Server browser is populated, but some servers are missing, even after tring a lot of stuff. Send help!

[Dct.F|Levente]

Update: I can see the servers with 9,999 ping, they appaer ~10 sec later, than other servers in the list. Why is that?