The 'send a frown' suggested I post details here: Feedback Type: Frown (Error) Timestamp: 2018-05-25T10:49:07.9847229Z Local Time: 2018-05-25T11:49:07.9847229+01:00 Session ID: 9bca41a5-84be-49e5-82d6-855bce87c1fe Release: May 2018 Product Version: 2.58.5103.501 (PBIDesktop) (x64) Error Message: Couldn't load the model schema. OS Version: Microsoft Windows NT 6.3.9600.0 (x64 en-US) CLR Version: 4.6.1 or later [Release Number = 394271] Peak Virtual Memory: 33.9 GB Private Memory: 275 MB Peak Working Set: 388 MB IE Version: 11.0.9600.18538 User ID: b4185002-0014-44f8-9a2a-f21be65cf88f Workbook Package Info: 1* - en-GB, Query Groups: 0, fastCombine: Disabled, runBackgroundAnalysis: True. Telemetry Enabled: True Model Default Mode: DirectQuery Snapshot Trace Logs: C:\Users\npdjvolters\AppData\Local\Microsoft\Power BI Desktop\FrownSnapShot1837469408.zip Performance Trace Logs: C:\Users\npdjvolters\AppData\Local\Microsoft\Power BI Desktop\PerformanceTraces.zip Disabled Preview Features: PBI_shapeMapVisualEnabled PBI_EnableReportTheme PBI_newFromWeb PBI_SpanishLinguisticsEnabled CustomConnectors AdobeAnalytics_UseHierarchicalNavigation PBI_qnaExplore PBI_variationUIChange PBI_canvasTooltips PBI_showIncrementalRefreshPolicy Disabled DirectQuery Options: PBI_DirectQuery_Unrestricted TreatHanaAsRelationalSource Cloud: GlobalCloud DPI Scale: 100% Supported Services: Power BI Formulas: section Section1; shared PaladinDataset2 = let Source = Sql.Database("localhost", "paladin_db", [HierarchicalNavigation=true]), dbo = Source{[Schema="dbo"]}[Data], PaladinDataset1 = dbo{[Name="PaladinDataset2"]}[Data], #"Changed Type with Locale" = Table.TransformColumnTypes(PaladinDataset1, {{"costofrequestedtreatment", type number}}, "en-US"), #"Changed Type with Locale1" = Table.TransformColumnTypes(#"Changed Type with Locale", {{"paladinsavings", type number}, {"allowance", type number}}, "en-US"), #"Replaced Value" = Table.ReplaceValue(#"Changed Type with Locale1","17","2017",Replacer.ReplaceValue,{"completedateyear"}), #"Filtered Rows" = Table.SelectRows(#"Replaced Value", each true) in #"Filtered Rows";