I'd been hearing that OSB, MDF, and plywoods that require resin adhesives were caught in that Texas winter storm: between pandemic and the big storm, the glue factory that apparently supplies a lot of the wood adhesives got shut down and we're now dealing with trickle down from that problem.
A quick google shows there some truth behind that rumor:
"Also, the winter storms in Texas believe it or not effected chemical production resin factories now not making the basic resins for glues, glues are products you know used for plywood construction OSB construction and that's a lot of the cost factors," said Gordon."https://wjactv.com/news/local/lumber-prices-skyrocket-as-shortage-continues
and
"Closures in Europe and in the United States and limited freight capacities on sea and on land have had a negative impact on the availability of raw materials essential to adhesive manufacturing.
Availability of raw materials essential to adhesive manufacturing had already been limited prior to the outages, the company said. The situation has been made worse by the recent severe winter weather in the U.S. South which has led to the loss of a large part of refinery and chemical production capacities in the U.S. According to the U.S. American Adhesive and Sealant Council, supply chains in and from the United States will take weeks or even months to recover."
https://www.woodworkingnetwork.com/news/woodworking-industry-news/chemical-shortages-limited-freight-capacities-reduce-wood-adhesive
And other resin / polymer issues:
"But there could be a bigger problem looming from the Texas deep freeze: consumer goods inventory issues. About 85% of the polyethylene made in the United States comes from Texas."
https://www.wgrz.com/article/money/business/texas-deep-freeze-causing-issues-for-western-new-york-manufacturing/71-847a2484-2440-4c98-873b-981dc7cd8b40