A notification with "Email might already be read"
Lately, I get some notifications about the same emails more than once. When I open the notification for the second time, I get the following message: "Email might already be read!". Screenshot attached.
Is it a known issue? Can it be fixed?
Thanks.
Is it a known issue? Can it be fixed?
Thanks.

Comments
I've opened the mail from the popup, and then deleted it. Deleting also marks it as read as per the options. Afterwards, I've got a popup about the same mail, and opening it showed the "Email might already be read" message.
Are you using auto-detect or manual account add in Options > Accounts?
Can you try re-installing the extension?
I use auto-detect.
I've re-installed the extension recently, and it didn't change the situation.
As far as I remember, though, the second notification looks the same as the first one.