Viewed status not working

Hi!

First of all, I love the plugin and have been using it successfully for some time.

However, since around the beginning of October, the Viewed Status element of the reports has not been working and has remained in No Data for every subscriber and every newsletter and post notification sent recently.

I believe that the emails have been sent successfully, having checked this with known users and test email accounts.

Both WordPress and the plugin are the latest versions available to me.

The Viewed Status part of the report is obviously a crucial method of analysing visitor engagement, so I’d be grateful of any suggestion for things to check.

Thanks!

Ian

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