One of my expressions for one of my Feed Importers is a count of a specific XML node. The count is often zero. However, for some reason it doesn't seem to want to store that value in the the actual Drupal Node. It doesn't throw any errors, and it doesn't change the value of the field. It will update the field just fine if the value is 1 or more, but as soon as the count is 0 it won't update.
The field in question on the Drupal node is Integer. I've also tried Text, but that doesn't work either, same behavior.
I know the XPath expression works because a) it works just fine any time the value is 1 or greater and b) I'm using XML Tree in Chrome and the expression always works and will return 0 when the count is really 0.