External ItemID not printing on PO invoices

I have setup external item ids and descriptions on many vendors. Under the form setup for I have selected “your” for item number on forms. Everything works correctly on the purchase order but on the invoice the internal itemid still prints. Has anyone else ran into this problem? Is it a known axapta bug? Thanks in advance,

I beleive this issue is a standard Axapta bug. If anyone here is able to print an external itemid on a ap invoice report with standard axapta 3.0 please let me know. Otherwise this topic belongs in the known bugs/issues category.