I had a stop loss on a short on GME (GameStop) today, to kick in if the price got to $390. To my surprise it triggered at $421, even though according to Trading 212s price chart and others that I have checked, it never reached that price. This resulted in a nasty loss and inability to open any more shorts (they suspended that for GME at that time).
This seems like a glitch to me. Has anyone had any similar issues? Is anyone from Trading 212 able to help?