I have a Test suite with test cases, Even if I delete the this entire test suite, save and restart readyAPI, the test suite comes back. There is a link in loadui NG, I deleted the test in loadUI also. When I save, close and re open, the Test suite comes back.
I had same problem with a project I created in 1.3.1. Besides the deleted Test Suites coming back, I also ended up with multiple copies of some of them. I finally gave up and created a new project (in 1.3.1) and cloned just the items I wanted to it. Once I was satisifed that it was working correctly, I converted it to a composite project and then upgraded to 1.6. It was painful but seemed the best route. So far I haven't had to delete any test cases or test suites from this new project and honestly a little fearful about doing it.