Is this related to this?
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/4258011-have-you-got-mail-that-i-signed-and-sent-because-usps-said-it-should-be-there-by-this-monday-but-nothing-change-on-my-status">https://ttlc.intuit.com/questions/4258011-have-you-got-mail-that-i-signed-and-sent-because-usps-said-it-should-be-there-by-this-monday-but-nothing-change-on-my-status</a>
Please clarify the dates. In another post, you said Jan 20, and then 5 days ago. If you forgot to sign the return and then did so, the 4 weeks starts all over again.