Not useless.
It (my macro) seems to work fine in Keyboard Maestro 7.1.1 (7.1.1) on OSX 10.10.5, but for some reason sometimes fails under 10.11.4.
But the real solution is to either remove "Smart Copy/Paste" from the KM Editor menu/features, or at least provide a KM Pref to always turn it off.
I have found many apps that do one or the other.