First, I don't have a REx. Someone earlier indicated that to release the door, you must HOLD the release button until it says the pressure is released on the display. Out of curiosity, do you just hit it once, or do you hold it until it says it will open?
2011 535i x-drive GT, 2014 i3 BEV
Soon (hopefully!) A 2021 X5 45e will replace the above