I am testing a algo in paper trading. It was working fine from last Friday (08/04/2017) till yesterday (Wed, 08/09/2017). Then today I opened the algo paper trading page (around 9am), then there was no position showing on the dashboard. I am 100% sure that the previous trading date has all the correct positions and there is no way that all the positions can by liquidated all of sudden.
I was wondering why it is happening. Is it because of context.portfolio.positions was not passed or maintained properly?
Is it an issue just for paper trading or is it likely to happen in living trading as well (but I am assuming quantopian algo will take actual data from the IB account to update the context object, right?)?
Thanks a lot!