I think I found it. The advanced condition was set out to be more legible like this:
fulfillment_status:unfulfilled
AND NOT status:cancelled
AND tag:Product_tag
AND tag:Stage1
AND NOT tag:Stage2
AND NOT tag:Stage3
AND NOT tag:Stage4
AND NOT tag:Stage5
AND NOT tag:Stage6
AND NOT tag:Stage7
AND NOT tag:Stage8
AND NOT tag:Stage9
but actually it all needs to be bunched together like this:
fulfillment_status:unfulfilled AND NOT status:cancelled AND tag:Product_tag AND tag:Stage1 AND NOT tag:Stage2 AND NOT tag:Stage3 AND NOT tag:Stage4 AND NOT tag:Stage5 AND NOT tag:Stage6 AND NOT tag:Stage7 AND NOT tag:Stage8 AND NOT tag:Stage9
Just FYI, it seems we’re having an issue. At least temporarily, the fix is to merge multi-line queries into a single line until we can resolve the issue.
Update: This should be resolved as of Friday (August 8). Please let us know if you’ve continued to experience this issue.