Conditional Build Step for "Current build status" never triggers - or doesn't seem to

I have a multiconfiguration build with a conditional build step that is supposed to run when the build is marked as failed after an "invoke ant" step.

In the build log for each [failed] configuration I don't even see that it's checking for this condition. In the system log I see nothing too.

Sorry if I'm doing something stupid, I just have no idea where to look for the information.

EDIT:
It triggers for builds with SUCCESSFUL "Invoke Ant" steps before the conditional check. In the case where it is supposed to trigger, the build status AT BEST is set to "Unstable." Worst status is "FAILED".