I just updated to the new version of wppa (4.8.7).
I had previously set the Sidebar Slideshow widget to display images from a specific album - SlideShowPix. I have a seperate Pix gallery page that displays images from another album - GeneralPix.
After updating to version 4.8.7, the Sidebar Slideshow widget no longer displays images EXCEPT when I go to my Pix page, where it now displays images from the GeneralPix album. On all other pages, the Sidebar Slideshow does not display anything.
I really enjoy wppa, and feel this is just a hick-up in the lastest update that I feel you need to be aware of.