Updating approval rules corrupt requisitions pending approval

Summary

Updating approval rules corrupt requisitions pending approval

Content

Hello, 

Our requisition approval requirements have changed and we wish to deprecate the existing rules and create new rules that reference a new DFF in the header level. However, after deploying the DFF and the new approval rules (from the UI - Manage Requisition Approvals), requisitions that were previously pending approval are now displaying an error message "Action details are not available because the approval process is being prepared. Try again later.". There must be away to perform this change with a seamless transition without having to withdraw and edit the large number of requisitions that are currently pending approval. Is