Radio keeps reverting to #1 preset
New to forum as of today... Really appreciate all the information I'm finding here. I searched "radio" and didn't find my issue so I'll ask here. When I start my 2017 X4 M40i the radio station changes to the #1 preset station. It doesn't happen instantly, but waits until the "be careful warning" on the nav screen goes away. If I push the control knob to make the warning go away sooner, the radio station changes then. I don't think it has always done this but I recently added a couple of new presets at preset #'s 39 and 40 and it seems it happens only when these were the stations I was listening to when I shut the car off. The 'genius' at the dealer said it's not supposed to be doing this and suggests I mention at my next service thinking it may be a programming thing. Any suggestions or thoughts? Thanks in advance!