I tried to create a variable to switch between our systems (dev/test/prod). I did it but when I tried to save the file this error came up. Once this error came up, the program was stuck in a loop and I could not cancel, go back and change, save or anything. I had to kill the app in task manager. Feedback Type: Frown (Error) Timestamp: 2021-08-26T13:33:20.8475484Z Local Time: 2021-08-26T09:33:20.8475484-04:00 Session ID: ba46a846-8ce5-49a3-93e6-5e41a282ab92 Release: August 2021 Product Version: 2.96.901.0 (21.08) (x64) Stack Trace: System.InvalidOperationException at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source) at Microsoft.PowerBI.Modeling.Engine.DataModel.Utilities.DataModelExtensions.GetLastKnownQueryName(IQueryableObject obj) at Microsoft.PowerBI.Modeling.Engine.DataModel.Utilities.DataModelExtensions.GetLinkedQuery(IQueryableObject obj, TwoWayDictionary`2 queryOriginalNameToRuntimeIdMap, ModelingMashupDocument mashupDocument) at Microsoft.PowerBI.Client.Windows.ReportExtensions.GetLinkedQuery(Report report, IQueryableObject modelItem) at Microsoft.PowerBI.Client.Windows.ReportExtensions.GetLinkedQuery(Report report, String modelItemName) at Microsoft.PowerBI.Client.Windows.DataModelHostService.GetRefreshPolicyExtendedInfoCore(String tableName) at Microsoft.PowerBI.Client.Windows.HostServiceDispatcher.<>c__DisplayClass6_0`1.<ExecuteOnUIThread>b__0() at Microsoft.PowerBI.Client.Windows.HostServiceDispatcher.<>c__DisplayClass5_0.<ExecuteOnUIThread>b__0(Object t) PowerBINonFatalError: {"AppName":"PBIDesktop","AppVersion":"2.96.901.0","ModuleName":"Microsoft.PowerBI.Modeling.Engine.dll","Component":"Microsoft.PowerBI.Modeling.Engine.DataModel.Utilities.DataModelExtensions","Error":"System.InvalidOperationException","MethodDef":"GetLastKnownQueryName","ErrorOffset":"92"} OS Version: Microsoft Windows NT 10.0.19043.0 (x64 en-US) CLR Version: 4.7 or later [Release Number = 528372] Peak Virtual Memory: 102 GB Private Memory: 640 MB Peak Working Set: 862 MB IE Version: 11.789.19041.0 User ID: 2c22e4d0-065d-454c-8601-3a8487033c79 Workbook Package Info: 1* - en-US, Query Groups: 0, fastCombine: Disabled, runBackgroundAnalysis: True. Telemetry Enabled: True Model Default Mode: DirectQuery Model Version: PowerBI_V3 Enabled Preview Features: PBI_JsonTableInference PBI_NewWebTableInference PBI_ImportTextByExample PBI_ExcelTableInference PBI_rdlNativeVisual Disabled Preview Features: PBI_shapeMapVisualEnabled PBI_SpanishLinguisticsEnabled PBI_qnaLiveConnect PBI_azureMapVisual PBI_dataPointLassoSelect PBI_compositeModelsOverAS PBI_dynamicParameters PBI_enhancedTooltips Disabled DirectQuery Options: TreatHanaAsRelationalSource Cloud: GlobalCloud DPI Scale: 100% Supported Services: Power BI
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