Apologies for that. When this has happened in the past it's been due
to issues with a database on our end, and I'm having the engineering
team investigate this most recent occurrence. The flakiness is quite
frustrating and I've been doing my best to let the team know that
missing data has a disruptive impact on many of our developers,
particularly those at agencies.
I'll let you know what I hear back.
-Jeff Posnick, AdWords API Team