Yeah, first run.
I never owned one, they released a 4-6-2, and 2-8-2 in ~1998/1999/2000. From all I've ever been told, "never buy one unless you can fine tune broken steam."
Now, the problem I have is, I cannot tell you what the issues were with them, but I know Athearn sold them on in boxes of a dozen for $1 in their garage sales, and they sold a BUNCH from what I heard, so if you got is recently, w/o a box, chances are it was bought at the garage sale.
Those garage sale units were customer returns to Athearn, and deemed unrepairable by Athearn...