Mind boggling ac problem

Hello there everyone. I'm new here, my names Greg and I'm having a troubling ac problem.
Took my 2006 4.0 tacoma x-runner to my mechanic because the compressor was shot. Once replaced my truck started blowing cold again...but only through the 1st and 2nd vent on the drivers side, the 3rd and 4th vent were blowing warm air(not hot) and the low pressure line wasn't getting cold at all. He since then replaced the condenser(which includes the built in dryer) and the ac clutch fan. Here's the kicker though, all 4 vents and low pressure line get ice cold in the mornings when its not redicouloius hot outside. Any idea what this could be???

 

If you are getting some cold air through a few vents I would suspect one of the blend doors is stuck and not moving fully out of the way. close the 2 cold vent all the way and see if the added pressure forces cold air out the other 2.