For anyone to competently address your question, they'd need to know, at a minimum,
the thing being traded, the effect on your inventory, and the type of account.
Just for grins, I'm going to opine that, while holding longs and shorts of a vertical spread in your IRA, you set up a sale of your insurance strikes that went unrecognized, and when trading opened, your order was hit, your longs were sold, and a fault was registered with IB. IB responds by putting the longs back into your account, at a 1/3rd-off rate, and we all go out for dinner.