gmail – After removing user, emails to another user receive bounce-backs

We have two domains. Our primary, abeeceedee.com, and abcd.com, which is set up as a “User alias domain for abeeceedee.com”

My Google Domain administrator removed angie@abeeceedee.com and now when ANYBODY sends an email to jack@abeeceedee.com they get a bounce-back that says:

Address not found
Your message wasn't delivered to angie@abcd.com because the address couldn't be found, or is unable to receive mail.
LEARN MORE
The response was:
550 5.1.1 The email account that you tried to reach does not exist. Please try double-checking the recipient's email address for typos or unnecessary spaces. Learn more at https://support.google.com/mail/?p=NoSuchUser q25sor14896966edi.26 - gsmtp

Reporting-MTA: dns; googlemail.com
Received-From-MTA: dns; me@mydomain.com
Arrival-Date: Mon, 30 Aug 2021 09:10:51 -0700 (PDT)
X-Original-Message-ID: <47530f4f-01f8-43a0-aecc-2832a8225dee@www.myprovider.com>

Final-Recipient: rfc822; angie@abcd.com
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp; 550-5.1.1 The email account that you tried to reach does not exist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1  https://support.google.com/mail/?p=NoSuchUser q25sor14896966edi.26 - gsmtp
Last-Attempt-Date: Mon, 30 Aug 2021 09:10:52 -0700 (PDT)

From: "Me" <me@mydomain.com>
Subject: Re: weird angie rejection
Date: August 30, 2021 at 12:10:27 PM EDT
To: "User Sam" <sam@abeeceedee.com>
Cc: "User Jack" <jack@abeeceedee.com>

I checked user Jack’s account settings and there are no forwards or rules set up. There are no groups or rules that I have been able to find that links user Jack’s account with the one that was deleted. Any hints on what else I can check?