Probably because the EA has been coded to do that.

You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
I have just seen that some EAs on the signal opens second trade when it has an opned trade.
Forexample, An EA has EURUSD buy at 02:30. It sometimes opens second trade as EURUSD buy at 02:35 altough its first trade is open.
Why?