It's been a very slow, sideways day overall without any notable drama.
While there's still no real drama, MBS are down 3 ticks from their highs of the day (.09). This isn't enough for serious negative reprice risk (even though one lender already repriced for the worse).
That said, it does likely mean that there is no further possibility of positive reprices. As such, risk-averse clients who were planning on locking today now have no real reason to wait.