Apologies if hijacking is frowned upon, but I just wanted to weigh in here with a similar report. In /src/Checkout.php unhook_woocommerce_original_emails(), it unhooks the Customer Note email, so any Customer Notes added won’t go out. I had to comment it out.
Was it intended to completely stop Customer Note emails going out across the board, and if so, out of curiosity, what was the reason for that?
Best,
Dave
