Unable to edit tax on AP invoice

Summary:

We are able to change the tax in the edit tax area but as soon as we save it reverts back to the original amount

Content (required):

sales tax is unable to be edited, not on all invoices but some. If we enter from scratch instead of uploading through the OCR it works fine.

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

Oracle Fusion 22C

Code Snippet (add any code snippets that support your topic, if applicable):