Interesting. So what we appear to have here is a "problem" that cuts across both 15' and 16' F8x *AND* also other BMW models....
So far 3,800 miles on my 16' F82 and nothing as described here. The only "electrical mods" I have are a V1 hardwired to the rearview mirror ACC and a Blackvue 650 2CH Dash Cam hardwired to an ACC fuse slot.
Hope BMW figures this out soon. Sorry to hear from those that are having this problem.