You can clearly see that RI's do not get Breach when they enter, which is why your Slave 1 ability is still on cooldown. The update notes yesterday mentioned a fix for Breach Immunity, and I suspect that is the cause. Is this WAI? Or is the last fix WAI and this one is broken? No one knows, CG will never talk about it, and you just have to deal with it until you maybe don't.
Edit: FWIW, someone else made an Answers report: https://answers.ea.com/t5/Bug-Reports/Executor-not-applying-breach-properly/m-p/12758699#M66706