Lead Selection does not work after setting filter for ALV.

Hi, Can you please suggest on below scenario :

I have a Node with a sub node in it .

I am using the supply function on Sub Node to retrieve the date based on Parent Node.

There are two ALV's to display parent and item data. The issue is when a filter(user defined filter) is done on Parent table, the supply function does not work. The value is that of the selected row before setting the filter. Even after removing the filter, the item data is stuck and does not change on Lead Selection.

One thing I noticed is if the child table is a table UI, there is no issue. The only problem is when the second table is ALV

Thanks In Advance