Comfort Access: Does not lock on first button press after driving

Hello, I hope this is just a simple answer of something I'm overlooking. I have an F32 BMW and E92 and I'm familiar with Comfort Access systems on those vehicles. Grab the handle, the doors unlock. Press the thumb area, doors lock.

However, on the F56 there's only one button for both functions.

Every time I want to open the F56, it does so without issue. Press the button, all doors unlock (as I have set).

What's peculiar is when I want to lock the F56 after driving the vehicle. Put the car in park, turn off the engine, exit the vehicle, close the door, press the Comfort Access button on the door handle... The doors unlock. To lock the doors, I have to wait roughly 3 more seconds and push the Comfort Access button again on the door handle.

My expectation is that the doors would lock at this point as it's the next logical step in the cycle of the Comfort Access system, since I entered the vehicle using Comfort Access and the doors successfully unlocked.

I just read through the user manual, and didn't find anything that stands out here. Is it just a software update that's necessary for the vehicle, or do I need to reset my expectations of how the Comfort Access system works?