I have experienced this a few times, l have 2 accounts in IB, U8200 and U8281, earlier on today wanted to do a TSLA combo trade, U8281 would not have enough EWL, however U8200 would. it showed the EWL for U8281, the insufficient account , even when U8200 was selected several times, l had then switched back and forth hoping it would go through, but it still refused giving the EWL insufficieny number of U8281. please comment