Hi,
We looked at your backend. But what you have is normal.
You have the same text for the product name and the variant name. And since you have the "Display the characteristics name" setting activated, you get both the product name and the variant name displayed.
Yes, before the update, you didn't had that, because before the update the system had a bug and wasn't taking the setting into consideration properly. Since the bug is now fixed you see that.
In your case, as Xavier said, you should not have the same text for the product name and the variant name. You should only have it in the main product name and in that case you wouldn't have the problem.