Audacity Forum

• I created a bunch of projects in Audacity 2.2.1 on my Windows 10 work laptop.

• I tried (zipping then moving in multiple ways then) opening them in Audacity 2.3.3 on my personal Mac OS 10.15.4 "Catalina" laptop but all of them just show flat lines.

• I zipped them (yes, including the project folders -- I zipped the "outer" folder containing all my Audacity assets) in Windows using 7-Zip (what I'm required to use).

• Tried transferring them uploading and downloading to MS OneDrive and my personal website.

Before posting this, I tried recording in Audacity using the MacBook Pro Microphone (which works fine in MS Teams and passed a "test" in the audio preferences) and got the same flat line. I now know there are issues with the new Audacity and Catalina regarding how to open files and with microphones -- are the causes also related to my problem? With opening projects from Windows?

Try updating Audacity on your Mac to Audacity 2.4.1 https://www.audacityteam.org/download/mac/