Interactivebrokers bid/ask problems / order fill issues (paper)

[scriabinop23]

i'm in the paper trading phase and have NT invoking market orders in liquid equities (like AAPL) and have a two fold problem.

1) lets say i have a 2000 share order with stop loss and profittaking limits. often it may hit the limit, but not every single contigent order will fill, and perhaps 100-300 shares will remain. BUT ... all of the contigent stop/profit taking orders disappear !! so i am left to manually deal with them.

Remember when i enter a 2000 share market order, i may have 5 or 6 sets of slightly different stop losses and profit target OCO groups. they are seperate depending on the fulfillment prices of the market orders. I wonder if all these orders getting hit at once (like 20 at a time) are whats causing TWS to lock the bid/ask...

2) when this happens, often the bid, ask or both on the stock locks up. right now i have the bid/ask on TWS locked, but price isn't it seems after that happens, the system won't re enter. i'm forced to restart IB, and relogin and reenter/restart my systems in NT to make it work.

3) should I anticipate these bid/ask issues are papertrader issues for TWS only? or do they happen across both? My live TWS trader rarely locks my bid/ask or price.

Solutions?

am running 871.3 TWS.