Sorry, but that macro doesn't call `random´ appropriately at all. No package should ever use `(random t)´ at all and especially not repeatedly. Please make org-random an alias to random.
Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Factory and User Sound Singles for Waldorf Blofeld: http://Synth.Stromeko.net/Downloads.html#WaldorfSounds