Till now it was possible to sort the servers by population. So you were able to see from the most crowded server till the most empty or vice versa.
Today Blizzard disabled even this. Now the servers are still divided into three groups (high, medium, low) but the servers in each group cannot be sorted anymore by population. So now it’s impossible to say which of the “high”-marked servers is the most crowded.
Just reporting. I hate these things, but I can see why they did it.
(I suspect that even the groups are broken, Froswolf is listed as “medium” and still has a queue. My server is “high” and no trace of one)