Yesterday, the USCIS posted an update to alert certain non-immigrant worker and change/extend non-immigrant status applicants that their approval notices may be incorrect/incomplete and should be disregarded.
Between January 20 and January 27 this year, the USCIS issued approximately 500 incorrect approval notices for certain I-129 and I-538 petitions. If you happened to be one of the 500 recipients of these incorrect/incomplete notices, the USCIS advised that you should not attempt to use them. The USCIS has started mailing new approval notices with corrected information to affected I-129 and I-538 petitioners.
Click here to read this USCIS update.