YQL returning null results from one client, populated results from another

Question

I have an application using a YQL query to convert results to jsonp format.

It has been working for several days, but suddenly started returning null results:

jsonp1296156548953({"query":{"count":0,"created":"2011-01-27T19:31:04Z","lang":"en-US","results":null}});

Oddly, when run from a different IP address it returns the expected results. Client browser is firefox in both cases.

This is a query against http://query.yahooapis.com/v1/public/yql which is supposed to have a limit of 1000 queries per hour, this application does about one per minute. But I wonder if this could be an indication of exceeding some kind of limit at a particular IP? Status code of the return is 200 and there is no indication in the response headers that anything is wrong.

Answer 1

This thread at YDN appears to describe this problem. Apparently it is fixed as of this morning:

http://developer.yahoo.net/forum/?showtopic=8291&endsession=1