'Unable to parse the provided payload' Error while doing a Convert Pending Worker

Summary:

When attempting to convert a pending worker, the following error appears when attempting to submit with no updates made to assignment data:

Unable to Parse the Provided Payload
You must provide a value for the AssignmentId attribute

The error persists even when VBS rules for the page are disabled, and across both custom HR admin and App admin roles.

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25B

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