Headphone Audio with Mac mini M2 and Studio Display.
Just purchased a new Mac mini M2 and Studio Display. I am running into the following problem; when I play music everything sounds normal through the Studio Display speakers. However, when I plug my Audio Jack connected to my headphones into the Mac mini, the music continues to play through the Studio Display speakers and the sound is not automatically interrupted and continued through the headphone. When I use it via Bluetooth it works properly. I have never experienced this problem before with other Apple equipment such as MacBook Pro and iMac 2020.
Updates are OK.
What is going wrong and thanks for all possible tips and advice!