Yes mine worked to begin with but was slow to engage. After the adjustment it would go into each mode bit did not register on display . Sounds strange and yours is the only other one that seems to have had the same problem I did
That sounds EXACTLY like what is wrong with mine.
Do you have a white model around the 4900 VIN serial number range? Maybe ours were both assembled by the same person...
I wonder when they changed out the display if they fixed the problem because the display was bad or in the process of switching out the display reconnected/replaced the wire that was either damaged or disconnected.
Either that or the display was just wonky from the factory and setting it back to specs pushed it over the edge and killed it.
I am going to try and trace the wires/cables tonight and push on them all and make sure something didn't come loose.