Why do I have to revisit a transaction to get paid?

I’m having this issue with ALL the previous games I’ve sold that haven’t been completed by the buyer. I wait for the 3 days period to end. But then I don’t receive the “Your sale of XXX is complete!” email automatically. Same goes for the funds. They don’t appear on my wallet activity. But when I click on the listing (stuck with the “Wait for acceptance” label), the moment I click on it, I receive the email and the funds are now shown on my wallet activity. And then the label becomes “Transaction completed”.
What’s the point of just clicking on the listing? I even do not need to rate the buyer. Why can’t this be done without my action?

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