Using 'Incoming Documents' functionality NAV 2016 and Permissions

Hi,
When user tries to create a new incoming document using the 'Create from File' option it only works if user has been assigned 'SUPER' permission.
If user doesn't have SUPER permission, then the insert file page opens but no record is created in NAV.
No 'permission' error is displayed.
I have tried adding the 'system' permissions for 1310, 1320, 1330 and 1340 to the 'BASIC' profile, but this doesn't make a difference.

Does anyone how to get this working for non-SUPER users?

Thanks,
Ben