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The programmer either meant to use NSNull or setValue:forKey or simply forgot a nil check.

Pretty lame mistake to let slip through review and testing and a common enough error that Apple calls it out in its documentation:

Simple! Use macOS Monterey’s new software quality tool to debug this. I’ve heard it’s surprisingly good!

Huh interesting, works fine on my 2018 Intel MBP. Surprising to see a bug like this on the newest models.

I doubt its a bug in a particular model. I'm on an M1 Max and the tool works without issues.

I am guessing its an bug in the tool itself that the user ran into.

Works on my M1 Air.