Dear Nikko,
Thanks for asking. In Oregon and Louisiana there are still 12 jurors. It's just that only 10 of the 12 need to vote guilty to convict a defendant.
I've added "of the 12" in the sentence below in the problem stem to try to clarify this.
"But in Oregon and
Louisiana (as of 2018), only 10 of the 12 jurors are needed to convict for
noncapital cases."
Tom