Email status doesn't change to "read" in statistic

Email status doesn’t change to “read” in statistic.

I sent email to segment and have 0 emails read in Channels-Email - My Email, but there are emails read in real. What’s wrong, maybe someone knows?

Email status doesn’t change to “read” in statistic.
I sent email to segment and have 0 emails read in Channels-Email - My Email, but there are emails read in real. What’s wrong, maybe someone knows?