Well, instead of going the CAR file route, I added the parameters in the actual fex that is displayed on the dashboard using the "WITHIN" keyword in addition to chaining them in the dashboard. Now they work correctly. It is just strange how sometimes that works without doing the WITHIN and other times it doesn't. I was using a reporting object at first in the fex, so I thought maybe that was the case, but I have another dashboard using a reporting object and it works just fine.