Expected Behavior

Go back to previous screen as usual when clicking the "Acknowledge" button to complete a bulk operation.

Actual Behavior

An error message is displayed.

Steps to Reproduce

1. Open two tabs with searches;
2. Trigger two different bulk operations;
3. When clicking "Acknowledge" on any of these, if the two finished, you get the error message above. However, both operations complete successfully.

Workaround

Perform one operation at a time, or simply ignore the error.