gme58 ,
Sorry for the delayed reply.
1) Which version of MyEclipse are you working with ? Can you share your Build Id from Help > About MyEclipse Enterprise Edition > Build Id ?
2) Can you append _overwrite=true to the url and check if it fixes your issue?
WAS must be caching the parameters.I suggest you also cross post to the Reports/WAS forums for better support.
Let me know how it works for you.