2023-11-10 18:56:49.517 +01:00 [ERR] 10.5.3 Export/import error: Exception: Failed to load content type with name 'CategoryData'
EPiServer.DataAbstraction.DataAbstractionException: Failed to load content type with name 'CategoryData'
at EPiServer.DataAbstraction.RuntimeModel.Internal.ContentTypeMappingAnalyzer.GetContentType(String contentTypeName)
at EPiServer.DataAbstraction.RuntimeModel.Internal.ContentTypeMappingAnalyzer.Analyze(ContentType contentType, AvailableSetting settings, IContentTypeAvailableModelSetting modelsetting)
at EPiServer.DataAbstraction.Internal.AvailableSettingsRepository.RegisterSetting(ContentType contentType, AvailableSetting setting)
at EPiServer.Enterprise.Transfer.Internal.AllowedContentTypesTransfer.ImportInternal(IEnumerable`1 transferObjects)
at EPiServer.Enterprise.Transfer.Internal.AllowedContentTypesTransfer.Import(XmlTextReader input)
at EPiServer.Enterprise.Internal.DefaultDataImporter.ImportStream(ZipPackage package, XmlTextReader reader, String partName, ImportOptions options)
at EPiServer.Enterprise.Internal.DefaultDataImporter.ImportPartOfPackage(ZipPackage package, String partName, ImportOptions options)
at EPiServer.Enterprise.Internal.DefaultDataImporter.ImportRaw(ZipPackage package, ImportOptions options)
at EPiServer.Enterprise.Internal.DefaultDataImporter.Import(ImportOptions options)
Similar to the issue for EpiCategories this happens also for the optimizely categories. EpiCategories issue (closed as completed, but how?) EpiCategories forum post Optimizely.Categories forum post
So the error is: