Dropdown Box Effecting Multiple Queries with Different Technical ID InfoObj

Hi,

I'm using BW 3.5 Web Application Designer. I have a dropdown box for region (0REGION) based on DataProvider1 and it effects DataProvider1, DataProvider2, and DataProvider3. In DataProvider2, the query that is used has region as a navigational attribute of Plant, ie 0PLANT__0REGION. And in DataProvider3, the query is based on an InfoSet. So the region field is named like ZABC_I01__F02.

My issue is that DataProvider2 and DataProvider3 don't get updated when I select a region from the dropdown. Essentially, all three (0REGION, 0PLANT__0REGION, and ZABC_I01__F02) are region except that the technical names are different. Has anyone also experienced this? And is there a solution>

Thanks!