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Crash when initiating Tethering

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Dec 29, 2017
Lightroom Experience
Lightroom Version
Lightroom Version Number
Operating System
  1. macOS 11 Big Sur
Mac OS 11.2.3 LR Classic 10.2
I've used tethering with a Canon 5D4 a lot. It just started crashing LR at the moment I click OK in the start tethering window. I've restarted LR, the camera, the computer to no avail. I've run Onyx and restarted. I've changed tethering cables. I've deleted LR Classic preferences. I've changed the input data in the start tether window. Same issue. I haven't updated either the OS or LR for several weeks but I can't pinpoint if this started after an update, I haven't tethered in several weeks either.

Any clues are appreciated. Thanks!

Different issue, in the past when it did connect it would freeze the camera after every 8-12 frames and I'd unplug the cable and plug it back in for it to work again.
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