Sorting servers takes too long and freezes the game (makes it unresponsive)
I do not know why the game goes to (Not Responding)
Go to server browser, wait for servers to show up and sort them. The more servers the laggyer it is.
For testing remove the ping filter and all other filters so you get all of the servers.
I made a video of it https://www.youtube.com/watch?v=6n5kZDOg__E (Don't mind the twitch stream in the background)