All I see is this Warning in the log on every file in the repositories:


 


Warn 2020-11-14 09:55:53.5779 MSIP.Scanner MSIP.Scanner (5228) Unable to get classification results for file: fileservernameRepo1Credit_cardsCC.pdf “System.ArgumentException: Value does not fall within the expected range.
at Microsoft.Mce.Interop.Api.ICAClassificationEngine.GetClassificationSession(UInt32 rulePackageSize, RULE_PACKAGE_DETAILS[] rulePackageDetails)
at Microsoft.InformationProtection.Common.Classification.ContentClassifier.ClassifyImpl(IContentProvider contentProvider, IEnumerable`1 contentParts, RULE_PACKAGE_DETAILS[] rulePackageDetails)