Chakel, I did speak to Atik and enquired. I believe the only difference between 5.0.4.6 and 5.0.4.7 is that the software user registration screen that appeared at the end has been deleted. It works great.
BTW, I solved my problems of Infinity occasionally freezing simply by increasing the RAM in my NUC. Its odd that it worked fine for twelve months, then suddenly I ran out of resources, but I guess a Windows update or similar finally pushed it over the brink. Infinity now races along, even when using a 4K UHD display. Many NUCs are supplied with merely 4 Gb. Most laptops with 8 Gb. I recommend at least 8 Gb for the Horizon.