It's an artifact of how the server tracks pagination state in the HN Arc source. If you idle too long your id gets flushed and you hit that error. It's been di

It's an artifact of how the server tracks pagination state in the HN Arc source. If you idle too long your id gets flushed and you hit that error. It's been discussed many times before, and for various reasons it doesn't look like it's going to be "repaired" (that word itself being subjective).