Need to Close a Project with outstanding Expense Cost showing as Committed Cost. How to resolve?

Summary:

Project/Award is showing a Committed Cost in the Award Financial Performance summary screen. It is due to self-assessed tax on a pcard transaction - commitment type is listed as Supplier Invoice. We are unsure why this is showing up as a "Committed Cost" and we are unable to close this project due to this issue.

We have typically seen this type of problem with POs but never with a supplier / payables related record.

Content (required):

We have 2 SRs open to try and resolve this issue. The currect direction is to cancel this invoice but this is a legitimate charge and it cannot be canceled. It is from a P-card purchase and it is the self assessed tax, which is accrued and has been paid. This is the first time we have run into this scenario and we have been working with support for over a month trying to resolve and close this project. Any ideas on how to resolve?