Did you update woocommerce at the same time by any chance?
It looks like an easy fix. If they decode the url it comes out as ?resize=256,258 which works like a charm.
I’m getting this too. I foolishly deleted my entire media library before reverting the update. Now I’ve got a bucket full of images and an empty media library. The saving grace is that because the plugin didn’t delete the files from the bucket, after reverting the plugin the images work again.