Drive select

For the first time since getting my A6 C8 I changed the drive select from auto to personnal (Drive system=Dynamic & Steering=Comfort)
However, when I started the car I got a warning meesage telling me to switch off the ignition, see photo
Panicking I did so and changed it back to Auto, restarted the engine but got the same warning
Perhaps foolishly I took it for a quick spin and now it doesn't grumble anymore after stop/start
Anyone know what is going on here?
Attachment 36501

Mine does this when door open


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As mentioned above, it happen when the door is open to remind you to switch off the car.

Thank you for your replies. It seems likely I may have had the door open at the time but I thought it was to do with me changing the settings:D