Missing working vertical slider in controls list / filter with large number of controls
For all filters with a large number of controls, a vertical slider is not available on the Mac to view the controls at the bottom of the controls list. This can be fixed by dragging the bar between the controls and the filter list at the top. Kind of in between cosmetic and a bug. I used the Brush Engine Van Gogh filter to illustrate the issue, and it is always reproducible if you restart Filter Forge 5 or change to another filter, then return to a filter with a large control list.
Mac OS X 10.10.4
Mid 2015 MacBook Pro with 16GB

Math meets art meets psychedelia.