Thank you for this. It looks like the Crop Image button was breaking and surrounding the image. I’m not sure if it was designed that way, but it has been very confusing for the site users.
I’ve fixed the issue in the CSS and I now see a button like the one shown in your video.
Yes, I’ve tested with the default TwentyX themes and all plugins deactivated except for BuddyPress and the problem persists. No save button when uploading the profile photo.