P: won't update my default settings

Since the new Adobe Color profile was introduced, I decided to adopt it as my default profile for my raw images. I had previously been using Adobe Standard. I have tried several times to change my default settings to include that profile as part of my default settings. However, every time I import new images the Adobe Standard profile is applied. I have reset my preferences in an attempt to correct the problem, but that didn't work either. I'm using Lightroom Classic CC 7.3.1 on Windows 10.

If I update my camera defaults and reset the images, Lightroom will apply the Adobe Color profile as it should as long as I'm using Lightroom following the import. However, if I close Lightroom and then use it the next time to import, it will apply the Adobe Standard profile to the raw images. This is an anomaly that I have replicated several times before I have bothered to report It.

Incidentally, I attempted updating the defaults by the alt-reset method as well as using the update default settings option in the menu. I used both methods multiple times in an attempt to make the default settings stick. Neither method seemed to work.