This is on Windows 10, I've not tried it on Windows 7.Diff beta2 vs beta3 macros.
select builtins.e
Press enter
it shows 3 differences.
Pick one and press enter -- diff opens.
Press ESC to leave.
Expected: Multifile diff should be on top.
But, instead Slickedit main window is on top and you have to manually select multifile diff to get back to it.
This may be caused by a very brief apperance of a progress dialog, which pulls Slickedit to front.
Note that when I select Builtins.e and press Alt+D (Diff), I don't have the focus problem when closing the diff -- it goes back to multifile diff as expected.