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@dectoo, I've gone back to Marlin 2.0.9. has too many issues for me to deal with, including PID tuning and bed leveling. The broken PID tuning is probably partially my fault, since I filed a bug complaint that Marlin was not using the full capabilities of the analog to digital converters on the controller board. When that got "fixed", PID was broken.

I use an under-bed piezo nozzle contact sensor for delta calibration and UBL. It works fine under 2.0.9.