My suggestion - assuming you're on Windows - would be to use Everything (here), let it index, then search for 'addon', 'Kinect' and/or PythonShell. See what it can find. I had this issue some time ago, way before 11.2, and IIRC I had a random addon folder from a previous install which was either incomplete or corrupt as deleting it solved the problem. Apologies if you've tried this already.

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