Standalones on el Capitan?

[RM]

I have just been informed that an end-user is unable to get the Intel 
Mac build of my Devawriter Pro
running on el Capitan (Mac OS 10.11).

Currently Devawriter Pro is developed using Livecode 4.5.

I will try this out on my wife's el Capitan MacBook tomorrow.

However, I should be grateful for feedback from other Macintosh users.

I have noticed that my wife's MacBook is ultra-picky (Apple being over 
protective + dumbing down)
as I recently tried to install GIMP for her to no avail.

Richmond.