could able to create clone test case to the test suite but it isn' display in the related test suite

Also to add, that If the cloned test case isn't showing up in the related test suite, ensure that you selected the correct test suite during cloning. Check for any applied filters or permissions that could be hiding the test case, and try refreshing the page (happened to me once). Also you can always manually move the cloned test case into the correct suite or re-add it, it is a bit of pain but may work. 
Hope it helps!