Can't make a 9/4 bar...

Hi! Im using MuseScore Studio 4.4.3 and I'm unable to create a 9/4 bar. I can create a custom time signature but it doesn't change the content of the bar. The only way is to edit the bar's preferences manually and apply, but then it only changes the current bar, having to repeat the process for each bar by hand, which is not a good thing...