the flaming snare has nothing to do with the side chain trigger signal. It probably means that you hear two snares.
Is you Side chain Bus set to "no output"? Yes of course
Do you have a screenshot of your routing? No because i've changed it now
and yes, like in Protools Vanilla and some other DAW's too the side chain signal is delayed because of the delay compensation of your whole system. That's why I use an audio track that I can move forward/backwards for a better timing. It's not a Logic Bug.
It really is the send. I took the side chain input off and the flaming stopped
Is you Side chain Bus set to "no output"? Yes of course
Do you have a screenshot of your routing? No because i've changed it now
I've done the approach of moving audio backwards and forwards to get in time, I can't think of many things more time consuming and boring for something that should just work. IT is for sure a software fault.