I has found an issue about parameter passing if it has unicode character. My code and export:
-- inProvince is a parameter of this procedure SET inProvince = IFNULL(inProvince,''); select 'dbr.report','sp_DBR_Sales_Line_Details_v2', 'new_popup', '[Sales]', concat('inProvince="',inProvince,'"');
select 'dbr.report', 'sp_DBR_Sales_Line_Details_v2', 'new_popup', '[Sales]', 'inProvince="Cần Thơ"'; select 'dbr.subtitle', 'Sales by >> Province: Cần Thơ'; select 1 as 'Quantity', 111111111 as 'Sales', 111111110 as 'Cost', 1 as 'GP[GP]';
And now in the Sales Line Details report, I receive Cần Thơ" with double quote follows, if inProvince='others' it works without double quote.