Hard to tell what went wrong there, as I didn't write that other tool. But ideally, they shouldn't step on each others toes.
The tool didn't get entirely disabled though - it's just the failing component (notifier) that got disabled. It will be back the next time you run Renoise (or, if you have scripting enabled, you can "Reload tools" to reset everything).
also, does duplex only records automation to envelopes
Yes - duplex only support this mode for now. But, good idea nevertheless