It's not you, now we just wonder if Tesla is crazy for changing this behaviour !?!
Why would they remove the "keeping the car unlocked" feature??
This is a bug that must be fixed. It is unsafe to assume the car "wants to be locked" after user has explicitly "unlocked the car" using the remote fob. It shall remain unlocked, with or without the fob being nearby. It's that simple.
Is the only way to prevent the car from auto-re-locking after remote unlock command to turn off the "lock after walking away" feature? Anybody tried and can comment on that... before I go an try myself tonight in the garage .. ?
I tested my "stay unlocked by double clicking fob roof".
It still works.