0.83: Optimization isn't reducing Thumb.db size

[cadu]

Hi,

I'd appreciate help (XnView v0.83):

As showed in this screencast (https://goo.gl/S9Btnb), there is no folder in "cached directory" (Settings>Catalog).

I went to "optimize" and set "catalog optimization" and checked all options (http://i.imgur.com/SK1fsBB.png).

After running the optimization, my Thumb.db is still having 1.85GB. I was expecting it being sized close to "zero" after the optimization.

Why Thumb.db is still having 1.85GB, even after the optimization?

What to do in order to shrink Thumb.db, reducing its size since there is no cached directory anymore?

Thanks for assistance,
Carlos

[xnview]

it's work for me, you need only 'optimize' & 'delete thumbnails'. could you try again a clean database?