The data entry (slides of numerical fields) in the Color Grading behave erratically.

When using the color grading panel the numerical fields for the Hue and Sat input behave erratically. When moving the Hue slider sometimes the last digit disappears. This happens with single Color Wheel interface. So instead if displaying 235 the field displays 23. It shows this behavior with various value: 231 shows 231, but 220 shows 22. You can check this  when displaying all 3 color wheels simultaneously. The hue values in both image is 235.

Lightroom classic is showing this behavior since the last update, 15.6 release. This seems like a bug. I have tried resetting everything to the default settings but that doesn't make any difference.

When I edit the same photo in Photoshop Camera Raw, Color Grading behaves as expected.