Flex Pitch in Logic Pro 10.7.6

I keep having this problem with Flex Pitch, where any audio I send its way is rendered as a series of the name notes all at C0. On the rare occasion, Flex Pitch would work, but most of the time, I get back the result of a series of notes all at C0 (screenshot below). This happens with multiple projects, and after Logic has been Quit and relaunch, as well as after the computer as been restarted.

I've tried the following:

• Going to the piano roll and clicking "Analyze Audio for Flex Editing" under the Edit tab, but it always brings back the same results, as well as turning off Flex and then back on again.
• I tried to follow the instructions from Apple on this site: If Logic Pro isn't working - Apple Support
• Specifically, I tried to bypass all third-party plugins (not delete, but bypass through the Plugin Manager), and
• I tried to reset Logic Pro Settings, and
• I tried to delete the Logic Pro PLIST file and to restart the computer

I still get the same problem. I'm running Ventura (13.1) on a 14 Inch MacBook Pro (M1 Pro).

Any ideas for getting Flex Pitch to work, at least most of the time?

Thank you in advance for any assistance you can provide,

Amir