It looks like such error only happens at the line of event_hash = event.to_json_compatible? And thus cause event_hash to be nil.

If that's the case, perhaps we should rescue that method call to make the case explicit? Something like:

begin
  event_hash = event.to_json_compatible
rescue => e
  log_error("Converting #{event.inspect} to JSON compatible hash failed", e, debug: configuration.debug)
end

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀

@drcapulet Do you want to continue on this one? Or you're ok with me opening another PR to finish it?

Closing in favor of #1853