Hover dropdown doesn't work outside Datagrid

I have a hover dropdown that when expanded and falls outside of the parent datagrid, no longer recognize mouse actions. I have tried various combination of Z-Order and Overflow - Visible but cannot get it to work. Any ideas please? Thanks!

Can you send me your editor link in dm? I will take a look

Actually I figured it out thanks @luka. I needed the Z-Axis set on the datagrid, in addition to the overflow set to visible. Thanks,.