Hi, In a customer on premise PROD environment, file uploaded from UI is sporadically not available in onclick action Microflow. Input file is empty in microflow. Not sure if it is caused due to delay added by network latency or firewall or oS folder scan … any hint to overcome or corner this issue. below error is from ExcelImporter module when attempting to upload template (xml) file. LastErrorStackTraceLocalFileSystemStore:: File does not exist for key: a68034e5-cf8c-4b18-a840-35a589395345 at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.getFileDocumentAsFile(LocalFileSystemStore.scala:167) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.$anonfun$doRetrieveWith$1(LocalFileSystemStore.scala:147) at scala.util.Try$.apply(Try.scala:210) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.doRetrieveWith(LocalFileSystemStore.scala:146) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.doRetrieve(LocalFileSystemStore.scala:137) at com.mendix.storage.StorageService.retrieve(StorageService.scala:90) at com.mendix.storage.StorageService.retrieve$(StorageService.scala:89) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.retrieve(LocalFileSystemStore.scala:25) at com.mendix.filedocumentprocessor.internal.FileDocumentProcessorImpl.getFileDocument(FileDocumentProcessorImpl.java:67) at com.mendix.basis.component.FileDocumentCore.getFileDocumentContent(FileDocumentCore.scala:15) at com.mendix.basis.component.FileDocumentCore.getFileDocumentContent$(FileDocumentCore.scala:11) at com.mendix.basis.component.InternalCore.getFileDocumentContent(InternalCore.scala:21) at com.mendix.integration.util.MendixObjectUtil$RichMendixObject$.getFileDocumentContent$extension(MendixObjectUtil.scala:41) at com.mendix.integration.actions.ImportMappingResult$.com$mendix$integration$actions$ImportMappingResult$$mendixObjectToStream(ImportMappingResult.scala:83) at com.mendix.integration.actions.ImportMappingResult$$anonfun$1.applyOrElse(ImportMappingResult.scala:73) at com.mendix.integration.actions.ImportMappingResult$$anonfun$1.applyOrElse(ImportMappingResult.scala:71) at scala.PartialFunction$Lifted.apply(PartialFunction.scala:313) at scala.PartialFunction$Lifted.apply(PartialFunction.scala:309) at scala.Option.collect(Option.scala:462) at com.mendix.integration.actions.ImportMappingResult$.mendixValueToStream(ImportMappingResult.scala:71) at com.mendix.integration.actions.ImportMappingResult$.apply(ImportMappingResult.scala:30) Thanks, Ranjit