Using Google Base Feeder v.1.7.0 09.019.2008

Too few items are added to my final xml feed file. When I run the query generated by google base feeder directly through MySQL, I get 338 items found. When I update my feed through the admin>tools>google base feeder menu, I get 197 items found. What limits the feed items with this feeder?
I looked at two items in my inventory where one appears in the xml feed and the other does not. All attributes, prices, check boxes, etc are identical. What should I look at to determine why one item is added to the xml feed and one item is not. The two items in my example are identical except for color and description. Title is identical except for color name. The category is identical, etc.

I cannot see why one item is included and one is not.

Any pointers would be greatly appreciated.