About dashboard (interactive mode on) when there is one parent table and two child tables

[Minoyaki]

I am creating an application with one parent table and two child tables (referencing the same parent).
The view is a dashboard ("Interactive mode" is ON).
I have arranged the tables in the following order: parent table, child table 1, child table 2.

My ideal would be that when I select one piece of data in the parent table, the data in both of the two child tables would be narrowed down.

However, right now, when I select one of the data in the parent table, the data in child table 1 is narrowed down, but not the data in child table 2.

Is there a better way to do this?
Please someone help me.

[WillowMobileSys]

---

@Minoyaki wrote:

However, right now, when I select one of the data in the parent table, the data in child table 1 is narrowed down, but not the data in child table 2.

---

Both Child tables should be filtered when you select the Parent row. 

Double check that you have the Parent reference column in the Child 2 table setup correctly - i.e. you MUST have a Ref column to the Parent row.  

Do you have a [Related Child 2] column in the Parent table that was AUTOMATICALLY inserted?  This is another way to double-check the ref connection is setup correctly.