Also @ibacher , this does expose a bug in the OCL export. The export zip that I download from OCL to represent the entire PIH collection above has this in it:
"to_source_url": "/orgs/PIH/sources/PIH-Malawi/",
"to_source_name": "PIH-Malawi"
As you can see from the screenshot image in my previous post, this “to_source_name” should be “PIH Malawi” (no dash), as this is the actual name of the source in OCL rather than the identifier of the source.