no sound with microphone

Hi. I recently got back into using Audacity to record music and had been doing so without difficulty up until today. When I tried to record a song from amazon music playlist, there is nothing being recorded even though the red line is moving across the screen. I read the troubleshooting page and did what was suggested regarding devices and made sure microphone enabled. Any thoughts? Thanks

I use windows 10 and version 2.3.3. I think i was updated to 2.4.1 when i first noticed the problem so uninstalled that version and reinstalled the previous version