Hi Sravan. Is there an enormous amount of values in the dropdown? I wonder if this could be the underlying cause.
We had an error like this, but idk all your details.
Essentially error was being driven because the filter was being passed to other worksheets in the workbook. And if that worksheet name had a '%' in it Tableau Server doesn't like it. So try looking for that. and just update sheet name to 'PCT' instead of '%'