I am for the "Akatosh created them" Story.
That the CK Crashes when you load multiple master files is a common problem which can be fixed with a simple .ini Tweak.Just google it.
the akatosh story covers how the dragons themselves came int o being. and i did not dispute this, nor does the story i imagined for this new fantasy race cast shadow on the akatosh story. in fact, if a god created something, and created it a specific way,t hat would lead to speculation that the creation is exactly the way he wanted it and he didn't want to make changes. that being said, creating a new race from an old race simply to give them a different appearance and add ability to reproduce makes the god seem weak.
unless of-course there was some war and the dragons help akatosh win, then i suppose that they could be allowed to have children for a short time as a show of thanks for their assistance.
im all for either. as neither, if written correctly, casts a shadow on lore, they could both be lore friendly, i just find the wizard one more likely, more believable, and easier to write then a dragon war.