Tethering with Canon 5D Mark IV not working in Lightroom Classic on macOS - "no camera detected"

I'm trying to shoot tethered with my Canon 5D Mark IV to Lightroom Classic on MacBook Pro. I can do this with no problems with my 5D Mark III. When I plug the Mark IV in, the little remote bar pops up but says "No Camera Detected." My MacBook has the latest OS, my Lightroom Classic has latest update and my camera has latest firmware. I do not have EOS Utility installed on my MacBook. I don't have FTP enabled. I've read a ton of forums and cannot find an answer to make my tethering work. I just don't understand how a Mark III works with no issues, but then the Mark IV isn't recognized. Help!

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