ePro requisition budget checking

 We have some requisitions that are in an odd state.   They were once budget checked and valid.   We know this because of how far they got in the workflow.   However they are not marked as checked now.   The most odd bit is that when you try to check them online, it just happens very quickly, and if you try in batch, the message log says 0 documents to process.

Does anyone know, or know of a document on what must be true for a requisition to at least try to budget check?   I am OK with it passing or failing, I just want it to do somethign.