This is easy to replicate.
If you do not have the gold (100% plank cost reduction), you can saw logs, but it just fills up and gives nothing.
If you have the gold to cover costs and then re-log, everything works fine and doesnt take the gold (it shouldnt anyway).
Been doing carpentry for 6 hours and have wasted my time. Stuck on 500 Mahogany Logs for that time. Any way we can remedy this?