I have a hypothesis of what is happening with V-ratings. It seems that for games with a gameID above a certain number, the V-rating feature no longer works correctly. That number appears to be
gameID=65535. For games with gameID= any number less than 65535, the V-rating seems to still work. I highly doubt it's a coincidence that this cutoff number 65535 is equal to 1 less than 2^16. Maybe this will be meaningful to folks who understand software coding.
For games with gameID above the magic number, the V-rating still *sort of* works, at least temporarily. It seems we all now have a correctly calculated and essentially frozen permanent V-rating that takes into account only games with
gameID=65534 or lower. When you finish a game with
gameID=65536 or higher, the V-rating system does in fact kick in, and adjusts your V-rating ... but that adjustment only lasts until you finish another game with
gameID=65536 or higher. The V-rating system then calculates a new V-rating based on your frozen, permanent V-rating, adjusted by only the results of that one, most recently finished 65536+ game. The effects of the previous 65536+ finished game is erased from having any effect on your V-rating.
Folks who are currently playing in active games with gameID less than 65535 could test this hypothesis. See what happens to your V-rating when the game ends. I would expect your V-rating to adjust normally, and permanently, based on the outcome.
Finally, a word about
gameID=65535. It's gone. It no longer exists. I have a feeling it was the game @CoffeeAndKeyboards mentioned, Congratulations Lawton!, that game apparently made the system go haywire when it ended.