Yes, it is the same type of problem that I faced. You may look how I fixed it here:
Basically it is about that you need to create new objects when/before you send the message, not using the original msg since it is now being changed "behind the scen" and it is not obvious to realize this at first glance
All users are hereby really encouraged to check their function nodes for this type of thing, otherwise you will experience some nice surprises, hopefully no crashes but not the behavior you expect
Personally I had to go through my huge flow step-by-step, checking and for some function nodes, change the code that was working great before - but not with 1.0
Anyway that is now done and for the rest, I think 1.0 works very well, looks good as well
