This alert is the product of a slow-motion retracement back to unchanged levels. Actually, 10yr yields are now 1.5bps higher on the day at 3.744.
MBS are still technically 1 tick (.03) higher, but down nearly a quarter of a point from post-NFP highs.
This isn't really worth much by way of negative reprice risk considering most rate sheets aren't out yet, but it's something to watch/consider for the small group of lenders that have access to lock yesterday's rates before today's come out.