Scaling Issues
Check the grey default value of the suspected item, if after cutting the formula the value is different, then this is the value that is reported.
Some how the raw geometry has been scaled, this is quite likely with reuse of a component and modifying it, and allowing it to be saved with a non-default scale (maybe, still investigating??)
These are hidden attributes that add _nominal to the size
_leny_nominal
this can be deleted to fix the issue
or the geometry needs to be rebuilt, check the post
Dan’s script is very useful to correct the problematic DC,