Steam client built-in server browser doesn't work either (always empty).
They never read steam community and don't fix problems reported on git.
All we can do is to let them know about this problem here and wait:
https://help.steampowered.com/en/
"Steam client" -> "Steam Client Crashes" -> "Contact Steam Support"
"CS:GO"-> "Gameplay or.." -> "Another problem" -> "Contact Steam Support"