Running Traceability Matrix Fails When Filtering by Test Cycle

When I attempt to filter by test cycle for the traceability matrix report, I get a 400 error.

Repro:

1. Go into Traceability Matrix.

2. Choose your project.

3. Filter by 'Test Cycle'.

4. Choose a test cycle.

5. Settings are defaulted to 'Coverage -> Test Cases'.

6. Run it.

7. Get error.

See the attached file for the error messages from the console.