Ouch!
I tried to play around with Apex Copier yesterday and bit after my stupid story.
This time, I used SIM account as a leader and the rest to follow.
This is what happened on my end. SIM one got filled instantly. Then I checked the other accounts one by one. I found out to my surprise, some of the followers had ghost orders on my chart, waiting and hanging.
This ain't cool at all. No wonder I had opposite trades.
I am currently checking out the free one from Ecosys.