Hello, Marie,
Thank you for your response.
Comparing plugins’ email templates and default WooCommerce templates you may see that Advanced local pickup for WooCommerce plugin has few more conditions -> https://prnt.sc/DaI28iZSP20f which make load of the email template content forcibly from their files and not from the basic ones (which could be filtered/hooked by our builder).
At first sight, it could be fixed simply by copying the emails templates files to your child theme but anyway we recommend you contact with plugin’s author with such questions to find the correct files and way for making it work correctly.
Thanks for understanding!
Kind Regards,
8theme team