Hello, This system will never be finished...LOL. For the last 2 days i've been simulating my new system on TWS Papertrader, orders are sent to the exchange but not "submitted" until something like 20 seconds( it remains blue instead of green )... When I send one order manually, it is instantly submitted but not API orders... There mustn't be errors in the order description since it's submitted fine after the delay, and it wouldn't appear in TWS if it was false... What's happening? Thanks a lot.