Hi @Chan_Wan_Ting - Welcome to QuickSight community and thanks for posting the question. Can you please share your RLS table configuration and sample data set as well so that we can have some details to understand the issue. Also please find the RLS related document below, have a look as well.
We have not heard back from you regarding your question. We would still like to help. If we do not hear back in the next 3 days, we will archive the question.