Hello, everyone!

I need some help with an HTML email status issue. I'm using Salesforce classic, Enterprise edition, and as of about October (3 moths ago) the HTML email status stopped showing up for some emails. The emails are sent but there is no record of it in the HTML Email Status related list on the contact page.

I have Email Tracking turned on in Activity Settings and otherwise did not change any email settings or templates. I read through Documentation and Answers on Trailblazer and neither of them seem to have relevant information.

Does anyone have an idea of what might be the problem and how to fix it? I would appreciate any feedback.