Schedule K-1 says attached K-3, but not received yet. Schedule K-1 FAQ says I don't have to attach K-3 to file my taxes. IRS says I do. Any advice?

My provider (Schedule K-1 FAQ) says K-3's are available by 8/31/2022 but that it's not required to be attached to my US federal return.  I want to file now and not wait.  IRS website says it's required to be attached if provided 30 days prior (3/16)  to filing due date (4/15).