Bravo on the Sticky. Long overdue.
For those that consider this issue life-threatening, please use Manual mode until a proven, permanent fix has been applied. Since, as stated, the transmission does not exhibit the problems in this mode.
Yes, I know, this is not a fix, but a workaround.
This mode can also be used to reassure previously tainted family members that you have better control and get them back into the vehicle for needed transportation.
46 & 2 just ahead of me...