Hi,
When I re-create all the thumbnails in folder with different thumbnail size, the folder metadata does not get updated: the thumbnail size changes, but the size of the grid remain the same (so, the thumbnails start to overlap if the thumbnail size was increased, or the spacing between them becomes too big if it was decreased). There is no "clear cache" button anymore, so I have to maually edit folders.xml
Is that a bug or am I missing something?