I have the same issue. The following statement is on the IRS website. Hopefully nothing actually got lost and the IRS office is just not processing them yet.
Paper Tax Returns: All taxpayers should file electronically through their tax preparer, tax software provider or IRS Free File if possible. The IRS is not currently able to process individual paper tax returns. If you already have filed via paper but it has not yet been processed, do not file a second tax return or write to the IRS to inquire about the status of your return or your Economic Impact Payment. Paper returns will be processed once processing centers are able to reopen. This year, more than 90% of taxpayers have filed electronically.
