Logic weirdly speeds up imported audio
Ok so this is a known issue when upgrading to Catalina. I found a solution and I can't explain how/why it works, but it did work.

I put the mp3 I was trying to use into Garageband, then selected Share>Export Song To Disk &amp; saved the file as an mp3. I then went into Logic, File>Import>Audio File, selected the saved file from GarageBand and it somehow imported without issue! Can't explain why it worked but it did.