Vendor of WC marketplace Can not see the question list page

Vendor of WC marketplace Can not see the question list page

HI Friends

I have a problem with Vendor of WC marketplace Can not see the question list page

We have selected all on Dashboard >> DW Q&A >> Settings. Permission Settings .

Show detail here

https://scontent.xx.fbcdn.net/v/t1.0-9/13177686_1605874529730437_3636735230364863730_n.png?oh=3935938b2cc3cda09f6e0488eedc3871&oe=57DB71BA
https://scontent.xx.fbcdn.net/v/t1.0-9/13174079_1605874536397103_7934343927897358409_n.png?oh=289ac6ae58333b52df7ded33b60e50cd&oe=57DBF503
https://scontent.xx.fbcdn.net/v/t1.0-9/13179028_1605874543063769_447728611507719176_n.png?oh=0781f038c43f204486265d6df87410f3&oe=57A6E41A

But it still show: You do not have permission to view questions
https://scontent.xx.fbcdn.net/v/t1.0-9/13179380_1605875786396978_2500232107602129624_n.png?oh=3a98f6eb31e7d52f65b2a549a1736302&oe=57E76689

Could I know how to solve this issue

Thanks a lot , and have a good day !

JK