FabFilter

When using only 1 Band in Spectral mode, it works fine.
How ever when using more than over-lapping bands in spectral mode, What you see is NOT what you actually get.
The combined resulting shape (The thick Yellow Line) reports something else, while in really something else is happening.
YOu can verify this by feeding some random audio, try to flatten it by multiple spectral bands, Check the output in an another Spectral Analyzer.
The Pro Q4's Yellow line will pretend its doing something , but the actual applied spectral EQ is VERY VERY different.
Pro Q4 with multiple over-lapping bands Is creating very ugly notches and peaks that you can Hear and See in another analyzer, but is totally invisible and unreported by Pro Q4 itself

I would send screenshots, it dosnt let me.

it seems to be a Phase Canceling . Comb Filtering issue.
Which is weird, since they are supposed to be linear phase.
Could be some bugs related to timing of each bug,