Why can't I rename/delete animation notifies?

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Real quick, I’ve recorded a video to explain what I mean, when I rename/delete notifies, it won’t update to the animation graph.( Deleted notifies still can be created as event, after compiling ) And when I keep ignoring it, the editor will crash while editing animation asset and graphs. Am I doing something wrong here?

Wish someone could help. Or at least let me know if I’m the only one who has this problem, then I’ll consider ignoring all the zombie notifies I created, but It is really annoying.

up, need help

Same problem here, it’s really annoying did you find any answer ?