Does it actually report low (like 25 psi or something) or does it report "--"? The dashes mean it's not receiving a signal, and since you have the problem in the same place each time (one of the further away wheels), it sounds like interference. Remove all dash cams and anything plugged in or electronic that isn't stock (even just a USB adapter, HID lights, LED internal lights, etc.) and see if it goes away. If it's actually reporting 25psi when it's really 42psi, and has done this after sensor changes... well, you got me there. You don't keep a spare in the hatch with a sensor, right?