Thanks for your reply! This particular report operates on the suite level and the reason for this is that the runs are linked to specific test suites and it would be difficult to display all possible suite/run combinations in a single report. I can recommend generating a separate report per test suite if possible. How many test suites do you have?
Starting with TestRail 4.0, we added a single-suite mode for projects and we now recommend using a single suite (case repository) to manage your test cases which makes it much easier to generate reports and runs for your entire case repository:
(see “Suite Modes and Baselines”)
You can still separate your cases by functional area in this case but you would use sections and sub-sections instead and this would be more flexible than using test suites. I’m happy to explain how this works in detail if this would be an option for you and your team and it’s also supported to refactor from multiple suites to the single-suite approach.