Document was returned to uscis

My l2 ead receipt was not delivered by post for some reason. It was returned to uscis. The case status changed to “document was returned to uscis”. I raised a request to resend the document. Will my case processing be put on hold till the receipt is successfully delivered to me?

Case processing should not be delayed just because the receipt notice was not delivered.

No need to worry.

Thank you very much sir.