"Missent" typically refers to the postal office accidentally sending your shipment t to the wrong postal branch or accidentally assigning it to the wrong mail delivery truck.

Don't worry, it doesn't mean that it’s lost. This typically resolves itself, and gets scanned when the courier catches the mistake and from there, it should be routed correctly.
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You can find more information on shipping scan codes here: https://about.usps.com/publications/pub97/pub97_appi.htm

Continue to monitor the package! It should still be getting delivered to you, just with slight delays. Thank you for your patience!