Hm, I am running a Ghost instance on 5.46.1 and don’t have any issues like that. Just tried it with a couple of test emails. All go through and stay subscribed.
Just saw your edit in your first post. You say these are pretty loyal users with a good open rate. Does that mean they have already subscribed before? I imagine, if they subscribed and unsubscribed in the same minute, they shouldn’t receive any emails?
yes thats the strange part. these are mostly subscribes users who received a number of newsletters, opened them, clicked links in them. and now I see them as Subscribed (again, it doesnt make sense technically) and unsubscribe.