Data entity: File contains duplicate rows, cannot insert data into staging due to unique key violation

Hello,

when I try to import Resource requirements for route operation properties entity, I'm getting the error "File contains duplicate rows, cannot insert data into staging due to unique key violation".

Index for staging table is (ExecutionID, DefinitionGroup, RecordId).

I'm trying to import the file that I exported with "Importable fields". I tried to change ItemId and RouteId field values.

Has anybody encounter same problem?

Thanks!