Filtered dropdown showing all entries unless correct entry selected
I have a dropdown which populated with filtered list based on input from previous stage.
For example, if I chose 'Health' category, the dropdown should only show options with health category.
In my case, the dropdown shows all the entries, including non-health. Though, if I chose any item with health category, the dropdown will update to show only from health category. What cause this and how to solve it?
I'm using pega 8.3