Subset of set displaying. Using proper API key.

Using latest plugin, and issue occurs on both WP 3.7 and 3.8.
Proper API used from flickr.
Plugin settings don’t ask for Secret Key so it is not used.

I’m finding some examples where a set will display less than all images in the set, even sometimes LESS than 20 showing, which even without API should work.

Doesn’t happen with all sets.

Any clue bits on where to track down the issue?

http://wordpress.org/plugins/alpine-photo-tile-for-flickr/