I recommend that Microsoft address the issue of circular workflow delegation. Currently, Person A can delegate their work items to Person B in Period 1, and Person B can delegate their work items to Person A in the same period. This creates a circular delegation, causing workflows to fail because the work items cannot reach their intended destination.

For example, if I set up a delegation from Person A to Person B, valid from January 1, 2024, to January 31, 2024, I can also set up a delegation from Person B to Person A for the same period. As a result, any workflow with work items assigned to either Person A or Person B during this time will fail.