The issue is that the beyond 5 meters the bolters make a secondary attack. (the bolt rocket gets armed after 5 meters and explode on impact) This secondary attack does not crit and that makes the damage number get the wrong color.
This is an issue with the color of the damage numbers in the psykanum and does not effect gameplay at all. The damage number color will get fixed in a future patch but rest assured that the omnissiah’s blessings works and that Hadron is not at fault.