centerback

Hi, I have a 2014 Octavia mk3. Recently noticed that hot air is only blowing from passenger side of the car, and getting cold air on the drivers side. anyone have experience of this, or know how to solve it? Car engine temperature is operating at normal temperature... no engine lights on I've tired a few things, but no success so far. I've tried a climate control reset trick a few times (holding down the A/C button & center vent button) I even swapped the Left & Right vent temperature sensors around.... but still the same result. I've reached through the dash, and managed to touch the heater core pipes, and they were very hot I even hooked up a basic fault code reader, but it said no error codes found. I got down in the footwells and a quick visual inspection of the left & right temperature flap control motors, and they seem to be operating normally... as far as i can tell anyway. I've attached a pic of the two flap controls, in case anyone spots an obvious issue with them Any other things i should try/check? any advice much appreciated. cheers.