DOL has said that FEIN verifications may be delayed due to the sheer volume of verifications being submitted in anticipation of H1B lottery.
USCIS Green Card Alert: Interfiling (EB3 to EB2)
https://youtu.be/QDNzfv-Pspw USCIS recently published an online alert persuading those with pending Adjustment of Status (“AOS”) applications a.k.a “Green Card” to consider interfiling or “Transfer