@Kevin
I have two Ghost installations but the the tracking only works on my test site. On my main site it does not.
Looking through my Mailgun logs (related to the Ghost installation where the tracking doesn’t work) I can see alle the opened/clicked events. These are, however, not reflected in the backend of my main Ghost site.
What is even stranger is, that looking through the Ghost logs it seems that the events are actually fetched:
{"name":"Log","hostname":"ghost-techliv","pid":14484,"level":30,"msg":"Fetched 300 events and aggregated stats for 1 emails and 240 members in 2044ms","time":"2020-12-11T10:20:01.789Z","v":0} {"name":"Log","hostname":"ghost-techliv","pid":13943,"level":30,"worker":{"threadId":6},"msg":"Worker for job \"email-analyt ics-fetch-latest\" signaled completion","time":"2020-12-11T10:20:01.794Z","v":0}
Despite this, the open rate in Ghost remains at 0%.