## Update ##
After replacing the front right TPMS sensor a few days ago the problem seems to have cleared!
Though it didn't seem to resolve the issue initially (as no values were being reported after resetting the TPMS system through iDrive), but around a day later the pressure readings started reporting on the car with the new front right sensor
It seems even though the old front right sensor was reporting 30% battery and full 255 signal strength, the readings weren't stable and fooling the system into reporting issues with the new front left sensor.
IMAGE: Sensor data/readings before after changing the front right TPMS sensor (wheel 2)....interestingly the 1275 failures on the rear sensors hasn't cleared but the front left did.