Reverse position is closed at same time as stop is hit and closed.. Why?

[Grego999]

I have limit orders set up to take the reverse position on an open trade if my stop is hit on that trade

The reverse order is set at the same/very near level as the stop order.

Yet when that level is reached both positions are being closed

1. Why?

2.  How do I prevent this from happening?

I have set the "Force position" button to on which I assumed may overcome this problem. But it doesn't

Thank you

Greg