If you play a game, reenter the serverlist and try to sort the list by ping, you'll get the first line sorted by name and the rest unchanged. Reproducible: Always Steps to Reproduce: 1. Play a game 2. Return to the serverlist 3. Click on "Ping" table header
Also, "Options" disappears in the main menu after a game.
It's a bug in vanilla 1.1.0 tremulous and it was fixed in svn long ago. If you need a workaround, you can download a backported data and vms pk3s or use an alternative client like Tremfusion. I don't know, though, the way maintainers are going to act, because there were no "releases" after 1.1.0, but some minor bugs are fixed since then in 1.1 branch.
games-fps/tremulous is gone.