GC Emails not sent, GCs not created

Plugin and WP fully updated, but GC functionality is not working. I’ve done test transactions and while they seem to work fine in terms of WC itself, the GC part does not. No customer GC email is sent and so no GC is created, even though payment processed and order marked processed or complete. As far as I can tell, the only way to use this plugin is to manually create GCs in wp-admin, which is NOT going to work for a front-end, user-facing shop.