Had a Stop Order in for AZN but has disappeared. Trying to re-establish but IG just keeps automatically cancelling - immediately... This is not the first time and had to try brute force (submitting over and over) for the first to take (the one that after a week or so has now disappeared). I only have a handful of shares (basically used up what buying power I had left over in this account so can't see an issue. Am I missing something excruciatingly simple that when highlighted will make me seem very foolish?