View Child Records associated to Parent table from Another Child table

np,

Just create a report Link Field on the Launch table. On the left side of the field properties choose the field for  Related Project.  Then on the right side, navifate to your app., then the field for related project on the Issues table.

Note that the very first time in your life that you do this it will cause a pop-up window that may be caught in your pop-up blocker. So if when you go to configure on the right side you don't see a list where you can choose your app, look for the little pop-up blocker indicator in your browser window and select always allow pop-ups from Quickbase.