I have seen an uptick in people complaining that they aren't getting any screeners on User Testing. I don't know if y'all are having the same issue as I am, but my dashboard used to auto-refresh and DING when a new test was available. It doesn't do that anymore. I hit refresh every so often and sometimes it goes from 0 to 20+ available screeners. Who knows what I missed between refreshing? Hit that F5 button regularly.
Hope this helps someone.