Shipping got "stuck"/factory overfull on load

Loaded my game today. I saw that, in spite of no breakdowns, my shipping department was not shipping. Replaced one paperwork and shipping pair, and it began to work. Then I thought to reload the original save, to see if it was still broken and preserve it for diagnosis by PDev. The game reloaded with normal activity, as I remembered leaving it. I’m thinking a reload populate error of some type. Just thought I would mention it.