Exam ACP-600 topic 1 question 56 discussion

In your last team meeting Scott showed a QA dashboard he has put together. It contains valuable data so he decides to share it with the entire project.
When you try to pull up the dashboard for the first time it shows multiple errors instead of the data you expected.
The most common error is: The filter configured for this gadget could not be retrieved. Please verify it is still valid on the issue navigator.
Scott confirms, that the dashboard seems fine when he looks at it. What is the most likely cause for this behavior?