Email statistics discrepancy

Hi,

I sent out an emailing and now I am reviewing the statistics:

  • Channels > Emails > email in list: 48% read
  • Email details / graph: 2 reads within two days (which are not 48% but under 1%)

When I compare this emailing to my other emailings, about 50% read rate should be correct. Where have the reads in the graph gone?

Peter