The topic is old, but if suddenly someone, like me, is looking for a solution to correctly switch presets with only 2 columns...
If you set 2 columns in the browser settings, then when you switch the next/previous preset, the browser will return to the category column. With three columns (default), the browser correctly displays the selected preset. Possibly a bad solution, but it works. Just reduce the ratio of the first column to zero if you only need to display 2.
"NumColumns": 3,
"ColumnWidthRatio": [
0.0,
0.5,
0.5
],