Yes! Just got it resolved 2 days ago after having the warning for 2 weeks.
Solution: I had 1 bad TPMS sensor on the left rear wheel of my MX replaced at Discount Tire.
Symptoms: the reasons I thought it was an overall system fault were a) it occurred immediately after a firmware update, and b) I was getting no pressure readings on any tire.
But, it turned out that if I drove continuously at highway speeds for 20 minutes, 3 of the 4 wheels showed a pressure reading. I took the 4th wheel to Discount Tire, and had them put on a new sensor, even after they told me that only Tesla sensors will work in a Tesla (I have snow tires with TireRack sensors that work just fine). The fault light cleared immediately.
So, it appears that if one sensor goes bad, there is a significant 15 to 20 minute delay while driving for the good sensors to start showing a reading. That is what led me to wrongly believe I had a bigger issue.