Dashboard can't receive the value from the hierarchy node variable in bex query

Dear

I have a dashboard in directly connecting with a bex query.

I need to get the values from a hierarchy node variable(type is user exit) for orgnizaiton unit in that bex query.

My problem is that dashboard can't recieve the hierarchy node from bex query whatever I've changed that variable.

I really hope someone can give me some advise because this is an very urgent case for me.

Thanks and Best Regards

Jacky