Hi All,
The issue has been resolved. With EHP7, "My Dispute Case" is restricted to show 500 entries only. Hence for processors having more than 500 closed cases, there was problem viewing active dispute cases. SAP Note 1921369 was implemented for this. A user profile parameter "UDM_MAX_HITS" was added and the parameter value can be set to any high value. My Dispute Case would then show those many entries.
We also implemented Note 1982949 which doesn't show confirmed & voided dispute cases in "My Dispute Case".