Hi Vincent,
If you’re seeing the blue hat in the corner of the chart, the EA has attached successfully. If the EA didn’t place a trade when it was supposed to, this must be down to the broker or settings. I’d suggest running a backtest for the last week or 2 and see if it should/would have opened a trade on FTMO. If it does have a trade in the backtest, the problem lies with the broker not executing the trade.
Thanks,
Ilan