In short No, esp not for lack of margin.
There is a setting to allow a position to remain open if the System / Algo gets Rejected with an error message (margin requirements need to be available else System / positions would be closed regardless of the ‘remain open setting’).
Thanks. I realise a position cannot open if not enough margin or stop too close for example, but does the algo need to stop? I would prefer it kept running then if another setup comes along it would try again