I just tried what you said, but it doesn't work. :(
AN still can backup, can't restore.
AN has a permission that write to storage and AN can write backup file to storage.
So, AN should be able to read from storage too obviously. Is...
Sorry but there is an issue with the forum where it can't send out emails.Because of this the forum is in read-only mode at the moment.
You can find the currently known issues with Tasker and possible workarounds here.
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