Why can’t audacity record all four of my microphones

[jademan]

I have a behringer u-phoria umc404hd this interface has 4 inputs and when i use 3 microphones on my interface with audacity it works but if i use 4 it freezes and won’t work at all this is for my podcast on my macbook air and it is on big sur 11.5.2. Thanks for all the help in advance

You would not be the only one. See also: Audacity 3.0.4 Freezes During Capture From Audio Interface
and: Error on playback or recording