The created and modified dates between your file system and within your files can differ. The application uses a property extractor to read the metadata properties inside your files.
When migrating documents from your file share with a time range filter, you notice that files are not migrated according to the set filter options.
The time range filter will not consider the created and modified properties within your files. It will only use the file system properties. Since the properties are extracted during the migration, you will end up with some files with a modified date that is not within the range you selected at the destination.
There is no solution to this issue at the moment.