Hmm, my shortcut is targeting jbed, and I just created a shortcut to Gmail to see if I could, and it works fine.

This is what the shortcut target looks like on my Mogul:


The things I would try next are:

1.) Soft reset, try again.
2.) Edit the shortcut in Resco Explorer, see if that makes a difference
3.) Try the Mortscript script, and see if that behaves differently.