When i drag a BSP cube into the scene the default dimensions are 200x200x200 if i drag from within the dimensions box under brush settings the numbers update and the box size in viewport adjusts accordingly. If you do this in reverse and use the scaling option from the viewport the numbers in the brush settings don’t change to reflect the new dimensions of the box. Bummer that in my first hour of using the engine I already find a bug.
This is a known issue that has been mentioned several times before.
None-the-lesss, thank you for reporting. However, there is no current timeline for when this will be addressed though.