Hi, I have a Xiaomi Redmi 3S. I am unable to backup my flashcard database and receive the following error message: Backup Failed Sorry, your flashcards could not be backed up. Pleco has all permission enabled in the permissions manager. There is also a tricky application called 'documents' which, if it is disabled, will cause problems for flashcard backup. (By the way, this app is autodisabled on every reboot after the most recent Xiaomi update, so if anyone is having other problems saving they should check this is enabled.) However ensuring this app is enabled still does not solve my current issue.