Mails im Posteingang verschwinden nach einer halben Sekunde

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Nextcloud version: 22.2.3

The issue you are facing:

Wenn ich meinen Mailkonto hinzufüge, werden die Mails im Posteingang immer nur eine halbe Sekunde angezeigt und verschwinden dann. Manchmal tauchen sie nach kurzer Zeit wieder ganz kurz auf um dann wieder zu verschwinden. In meinen eigenen Ordnern tritt das Problem nicht auf