Entering a number into falloff
amount resets the falloff size to 100%
3.1 - 3.3
Entering a number into the Amount field under "Correct brightness
on the Overlap region dialog box causes the Size value to be reset to
The displayed value does not change, but the effective size changes to
After typing a number into the Amount field, select the text in
the Size field and retype the value.
Corrected in V3.4.