Divine Retribution - Sands of Time - clones not triggering spells

Using Sands of Time with Divine Retribution creates the clones after each time the retaliation skill is cast, but after 3 casts the clones play their animation, disappear, but no skills are cast by them.

There is ABSOLUTELY NOTHING in the skill description that should prevent this effect from working. No mention about cooldown spells whatsoever.

If this is a bug, please fix the interaction between cooldown skills and clones created by the skill. If not, then adjust the description of the skill.