We have resolved the issue and all queries will be operating as expected. The issue was introduced at 4:32 AM UTC on 09/30/2016. Segmentation/active user queries with zero results on certain dates or for certain segments were affected.
Posted Sep 30, 2016 - 09:24 PDT
Identified
We've identified an issue that is causing a small percentage of web reporting queries to hang or fail. We are working on resolving this issue ASAP. Apologies for the inconvenience.