Its actually a very recent change from what I hear from a local realtor. The market is decent--but buyers suddenly aren't wanting to move or are not wanting to sell as they are worried about being able to find and afford their next place. Not hard to see why. The prospect of job loss from all the actions of the administration shuts down a lot of purchasing desire, and the prospect of interest rate increases and fewer buyers has people wanting to stay in their homes until things shake out.
Realty markets like stock markets are hurt by uncertainty and fear of what's coming.