Adding macro input parameters to an app breaks existing macros, throwing "No macro metadata" error

Issue Summary

A Confluence Cloud macro which had a single macro input parameter has been updated by adding 2 more macro input parameters (via the Connect descriptor).

For new instances of the macro (i.e. new page, new macro), everything works just fine. But for existing instances of macro (i.e. macro was inserted into page with app version that only had one input parameter), you cannot edit them at all once you've upgraded to the new version of the Connect app (that has more input parameters).

On editing an instance of the macro, “No macro metadata” modal is returned, rather than the proper edit modal.

Steps to Reproduce

1. Create Connect macro with a single macro input parameter.
2. Insert macro into Page A.
3. Update Connect macro descriptor with additional input parameters.
4. Insure that your Confluence Cloud instance has been updated with latest version of the Connect macro.
5. Edit Page A, and try to edit the macro settings.

Expected Results

Macro edit modal shows up as expected.

Actual Results

Modal with error windows shows up.

Workaround

Currently there is no known workaround for this behavior.