Every time I go to a brick's events I see a duplicate of the final line added.
Other things I've noticed so far: (Note that I'm using this mod with drop down search)
It often just straight up tells me the wrong set of events that are enabled (using toggleEventEnabled)
VCE_modVar doesn't auto fill in Brick, instead it appears empty (same thing with all outputs actually, e.g. setColorFx)
When using with drop down search, choosing named brick doesn't go straight to searching for a name
The Apply All button is gone, although maybe that wasn't default to begin with
Until these issues are fixed I'll just continue using EventsGUIPlus with DropDownSearch, it works well.
Edit 2: After further investigating, this mod caused an incredible number of events to break. Most notably all of my relay and toggleEventEnabled events became terribly broken, in some cases calling events on the wrong brick entirely. Removing System_Events made everything go back to normal, but my god that was a wild ride.