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Test cases showing cancelled in execution test suite.

One answer

It depends on how you cancelled, stopped or paused the execution, some actions will not allow you to resume.
Please see this post: https://jazz.net/forum/questions/94303/how-to-resume-the-test-case-execution-if-we-cancelstop-run-in-middle-of-execution
The referenced workitem has more explanations:
https://jazz.net/jazz02/web/projects/Rational%20Quality%20Manager#action=com.ibm.team.workitem.viewWorkItem&id=62649
Please see this post: https://jazz.net/forum/questions/94303/how-to-resume-the-test-case-execution-if-we-cancelstop-run-in-middle-of-execution
The referenced workitem has more explanations:
https://jazz.net/jazz02/web/projects/Rational%20Quality%20Manager#action=com.ibm.team.workitem.viewWorkItem&id=62649