Category thumbnails show folder icon on refresh browser

[behanna]

Category thumbnails randomly showing folder instead of thumbnails when refreshing the browser? The should randomly show a thumbnail, but one time shows thumb, hit refresh and shows folder icon. Any ideas? Latest version of joomla and phoca gallery.

http://www.coveredbridgechapter.org/bando_new/photos - refresh to see behavior

[crucian]

this may be due to empty folders in those parents directory

[behanna]

So there has to be at least one image in each category? Or parent folder?

[crucian]

at least one img in every child categ.