The NFT market, that hot new thing that catapulted into an over $40 billion industry, has since tanked. The crypto winter has led to several class-action lawsuits against big players such as Nike and Yuga Labs.

A group of people sued Nike this week over its decision to wind down its virtual show project RTFKT last year. The buyers of the digital assets accuse Nike of causing “the rug to be pulled out from under them,” and say they wouldn’t have bought its NFTs if they’d known they were “unregistered securities,” reports Reuters.

Brands like Nike and Starbucks retreat from NFTs, facing market collapse, lawsuits, and shifting to sustainable digital strategies.