DislikedGood observation.... I didn't mention this because this is done by my EA. I want to keep this thread on the topic of the "system" and not focus on the EA (which is also why I haven't posted it), but here's what is happening and why you see that:
My EA manages the 20-pip SL and whatever the TP is internally. The order will be closed (by the "rules") if it reaches -20 pips or the "target" TP. The SL and TP that are actually sent with the order by my EA are 10-pips above/below.
It won't affect the system - technically speaking, the SL and...Ignored