Funding patterns not supported through ADFDI imports?

Summary:

Can anyone confirm that Funding patterns are not supported with ADFDI project cost imports to Project costing

Content (please ensure you mask any confidential information):

I did a manual transaction test - creating a transaction through Unprocessed Costs and the funding pattern seemed to work

However, when trying to use the import spreadsheet for the same project, it gives an error requiring the contract and funding source. Are funding patterns not supported through ADFDI? Any workaround? We need this for an integration that will be pushing costs to projects and doesn't have contract/funding attributes

Version (include the version you are using, if applicable):