No subcategories when show vendor categories list

-- HikaShop version -- : 2.6.0
-- HikaMarket version -- : 1.6.7

Hi!
I have 2 vendor category with sub categories:
-Vendor A
--sub A1
--sub A2
-Vendor B
--sub B1
--sub B2
i want to get exactly vendor categories list when user click to vendor page, so, i using hikashop content module to get vendor categories list and set 'Synchronize' is 'yes', 'Only with products' is 'yes', 'Show children' is 'all sub element' and 'Sub elements filter' is 'all sub element', but no sub categories showing up.

however, when i set 'Synchronize' is 'no' and 'Sub elements filter' is 'direct sub elements', sub categories is showing up, but both vendor categories list showing too.



all i want is when i go to vendor A page, only categories of this vendor A will showing up
please help me to fix it!
thanks!