We've had an AdWords campaign report query in production for quite some time now, working great. Starting yesterday we began hitting null errors that we tracked down to the "sizeForSearch" field not being returned -- but this happens inconsistently from one call to the next for the exact same account / query. We've seen this on multiple accounts, with no rhyme or reason as to when a particular call might return that field or not.
According to the docs this field can be null, and we added a check in our code to handle that, but I am concerned about the inconsistency of the behavior, and the fact that this just started happening after many months. This feels to me like a regression on the Google side, or at the very least a sudden change in expected behavior. Can anyone confirm this, and if it might affect other fields as well?
Thanks,
Brian