A/C Issues

[Skyline]

2008 4.8 w/4 way climate control plus ventilated front seats.

I'm having issues with my A/C system. It can produce cold air, but it seems I have a distribution problem.

With 85 deg F outside air, I get nothing but warm air, 90 deg F + out of the vents to the left of the steering wheel. The left center vent produces about 68 deg F air, The right central vent is about 58 deg F, and the far right vents are about 68 deg F. The rear A/C is producing about 64 deg F on both vents. The Seat A/C seems to not work at all.

About a month ago, I had the front blower motor replaced. I don't know if anything I'm experiencing now is related to this job being done, (perhaps improperly?) But all these issues are since that job was done.