Hi Leif,
Please take a look, works without problems.
Note: If you are in a 3D Part, Sheet Metal Part, Assembly... (modeling process)
Do not change back and forth -> Properties -> Units -> General ->
Unit: Inches <-> Millimeter <-> Feet....
Format: -> Fractions <-> Decimals
Precision: 0 <-> 1 <-> 2 <-> 3 <-> 4 <-> 5 <-> 6
...etc.
.