Hey Saymonc, we're you ever able to find the cause of this issue? I'm having this happen to me as well. When I begin using the Report Query functionality, the schema downloaded just fine. I made an update to a query and began receiving this error. Now I get the error for ALL of my report queries. I tried removing them and recreating them, and I continue to receive this error in my schema file, no matter how simple the query. The data will download just fine, and using the Test Report button works as well.