Iirc, there was an issue with that which is solved meanwhile.
There should be an option in
Current Drawing Preferences in
Dimensions tab.
It is called
Linear zeros in current version, I think its name is the same or similar in 2.1.0.
When there
remove right is checked, zeros behind the point should be removed.
The issue was, that all zeros on the right were removed, what is wrong of course.
So you can try to uncheck this or update to a newer version, e.g. 2.1.3 or latest nightly build.
investing less than half an hour into Search function can save hours or days of waiting for a solution