formatter function ... not found! SAPUI5 Attachment Reuse

hello,

I am trying to reuse the attachment service in a List Report - Fiori Elements template.

The issue seen in console log is "formatter function adnoc.sapfin.invoice.zfi_inv_create2.model.formatter.returnAttachmentKey not found! - "

The attachment component is visible, but issue is while calling the formatter function to set the "Object Key".

Any pointers to solve the issue is much appreciated.

issue-attachment-reuse.jpg