Order cancelled or failed order not sent to customer

Hello !

I have just discovered a problem that unfortunately causes me a lot of trouble. When an order is made on my site, I receive the message for the new order, the customer also receives a confirmation email. But when the order failed or I want to cancel the order, I receive the cancellation or failure email, but the customer receives nothing at all! I had orders that were cancelled a weeks ago and the customer contacted me to know where his order is.

Anyway, I did some tests of order and the problem comes from the fact that {customer_email} does not work ( in email type and text > RECEIVER(S) > Enter the recipients (separated by a comma) for this email. Sent by default to )! I tried adding my personal email address instead of {customer_email} and I get the order cancellation. But I want the customers to receive this automatically. How can I solve this problem? This is quite urgent. I am manually contacting the customers of failed or cancelled orders at the moment but it is not very professional.

I am using WordPress 5.9.3 with the latest version of your extension, Kadence Theme 1.1.19 and Woocommerce.

Sincerely,
Antoine