I turn the Master Section faders down 50 db, select a two minute rectangular selection from 200 Hz to 600 Hz, Spectrum/Processing/Master Section - Apply. Instead of reducing the selected range by 50 db, it raises all audio in that two minute selection about 6 db. Am I doing something wrong, or is this a bug? It does the same thing if I use the Gain plugin instead of the Master Section faders. Windows 10, WL 9.5.35.
Indeed, this function is broken. Will need to be fixed in 9.5.50. Thanks for the report.