The sprint timer did not turn off after passing under the banner on the first lap. It did reset and work correctly on the second lap. It has never done this before.
What was different from previous rides today was that I rode a few minutes and had to stop for about 10 minutes. When I returned, I resumed the ride without logging out and back in. HR signal of course was lost while I was away but was easily picked back up from the pair button on the results screen. Just an FYI if it has been an issue at all.