When I edited the data in the window of the feature values at the first touch of Backspace when erasing a single letter "m" to "mm", it turns out the meter, then Fusion starts to hang, to convert a value in meters.
I don't have time to even click a second time to get to the values when editing numbers, in the end, waited for a few minutes until the fusion has converted the geometry, the Esc also does not react in this situation. Sometimes Fusion just cut off.
Make the default values were not displayed, for example let the user be able to add after the number values of the letters "in" or "m" if you work in millimetre, and he suddenly needed to enter the data in other units, and if in mm, as in the tincture, let it be numbers without indicating the unit.
There will be no such situations that will randomly affect the size and unresponsiveness of your application.