Tree map grayed out even after refresh

Hi,

A Treemap is used as a header for filtering other data-sources.

In regular usage the users want to start again after applying filter on Tree-map. We are clearing filters using State.backToStart() and data refreshes on Tree-map, but the Tree-map is grayed out on items which is not selected in previous instance.

I tried,

(1) to re-load the data using reloadDataSources(DS) on the tree-map after refresh (using State.backToStart())

(2) also tried DS_1.clearFilter("ZZDIMENSION");

(3) tried clear filter as in point 2 with DS_1.loadDataSource();

Please refer to attachment for details of error.

NOTE: We are using Version 1.6 SP2

regards,

Muthu