She vetoed the first bill because it was poorly written.
Signed the re-written bill.
From the links below
“... After initially supporting House Bill 1217, Noem sent a style and form veto back to the legislature with a slew of requests, including removing a provision designed to protect collegiate sports. :
....”
https://www.foxnews.com/politics/gov-noem-trans-athlete-bill-strongest-womens-sports
Exactly as I said, Governor Noem doubled down on stupid and made the legislature water down their anti-grooming legislation. She is a liberal stooge of globalist donors. She can wonder off in a South Dakota prairie with John Thune and Tom Daschle and take her three electoral votes with her.