Emails and messages app not working as the plugin

[afonsofigs]

Hello everyone!
When using the "User emails" plugin on saleor I can successfully send e-mails every time and with all information included on the email.
When instead I use the Emails and Messages App only the first time after I restart the server does it send an email confirmation; and when I send invoices, the email doesn't include the invoice object and so it doesn't show the link and any information for it, even after confirming the settings in the email template.

The following image shows the logs for the saleor worker, after a user registration.
As we can see only the first one (highlighted) succeeds while all the others fail to deliver, while doing the exact same actions.
This works perfectly when using the plugin instead of the app.

For the invoices sent event, even though while editing the email template on the app I can access and preview the "invoice" and "order" objects, the sent email has no invoice object and so the url link and other information I try to use from the invoice object is sent blank.

My saleor infraestructure is self-hosted on docker, with the following versions: dashboard v3.16.1, core v3.16.1, Emails & Messages v1.9.10

For now I'll keep using the plugin, but since it has been considered deprecated, I would like some help to fix this issue.

Thanks!