Client > View Email Log doesn't show emails actually sent

[KWD]

Blesta 5.9.3 regular
PHP 8.1
 

When you go to a client, then click View Mail Log, then click on a message, the content of the message shown does not match the email actually sent to the client, if you have changed the email template.

I thought the email template editing process was broken, but I confirmed via server logs the client received the correct message. It's just not being shown correctly under the Mail Log in Blesta.