Azure DevOps Test Plans - Runs

When I start a Manual Test Execution via Test Plans -> Test Suite -> Select a Test to execute -> Execute -> Run for web application the "Test & Feedback" browser extention kicks in. If for any reason I don't complete the test execution and just close the "Test & Feedback" window the system creates a new test run which can be found in the "Runs"module and its state will be "In Progress". I want to cancel and or delete the run or all other runs which I don't need to see and can not figure out the way to do it. Double click on the run opens run summary and results and even from the over there is no way to cancel it. And the Test result for the test is listed as "unspecified". Looks like a DevOps bug but would like to confirm.