Most sellers have the same problem after this update. If your gig doesn't get any click and impressions, then you probably won't get any briefs. As we already know, Marketplace and Buyer's Brief work using smart algorithms to match buyers with the most relevant services. So if your gig search results aren't considered relevant, you probably won't be considered relevant for the brief either.
It's(relevancy) will be determined by your Gig title, tags, description and seller performance as well.