Number of runs in the market?

I have a trigger which opens a trade called "dom-backing", and one of the conditions of a trade out is dom-backing must have a trade open.

I've done it this way:



However, the trade out wasn't working so checked the logs, and the logs say that this condition is reporting FALSE.


But in this screenshot, you can see the trade is open.


Have I used "Number of runs" incorrectly?

I've used "Number of runs per selection" on other triggers and they've worked fine.  The reason I have in the market this time is because I want it to cover all selections in the current event.  I have tried in the sports event as well, but that doesn't seem to work either.

And in the market isn't covered in the manual.  

Hello,

What's "Selections" option value of the trigger?
If it's a particular selection, say "Favourite" the trigger first selects the selection and then check all the conditions against it.
Even if it's set "in the market".
If the value is "* Matching Selection" it filters all the selections with conditions and then apply the result.