Had another reply from Spectracal:
I was going over your case with an engineer. They pointed out that the gathered Y, y, and x data in CalMAN and HCFR are the same. The only deviation in the numbers exists in the DeltaE numbers each application is giving you. We have no way of knowing how the DeltaE is being calculated in HCFR, only that our calculation follows the DeltaE spec exactly.
It’s our recommendation that the projector is recalibrated using the UHP Lamp meter profile, and reassess if the green hue issue is still present.