@testplay by stalled you mean that it did not produce evene if units were in the queue? I had that very occasionally and it is typically because there is a unit / engie stuck somewhere. Somtimes however (very rarely) it just will not produce any units regardless. Did you try to completely stop it and creat a new queue?
Degrading game responsiveness over time (factory queue in particular)
Yup I think that there was a unit near the Tech 2 Land Factory HQ but we cannot be overseeing those kinds of things in the actual game itself because you will not know when it will jam up. I did not stop it and to try a new queue because I found that I could tech up instead and bypass anymore stalling.
