Can you please try declaring the data page in the pages and classes in pages :D_ShowDelegatedRules, in class specify the class name. Once specified in pages and classes save the section and refer by passing the parameters to the data page or create a when condition and specify the condition in the when rule and specify the when rule on the section.
1) I have delcared datapage in pages and classes tab but still the same issue.
2)It worked fine by specifying this datapage condition in when condition. But as per our requirement we want to pass the section name as hardcoded parameter to the visibilty when condition. We were not able to find a way to pass params to visibilty when in this scenario.