I had a similar experience. Backstory - I drove to the Niagara Whirlpool Enrollment center on the US side on Saturday. Super easy and no waiting to cross the bridge. I was literally on the bridge for less than 30 seconds. They did not require an appointment to update my citizenship and passport info on my Nexus profile. The Canadian officer did his update first and then the US officer. However, after I left, I logged into my profile on a whim and realize that my name had been misspelled. I went back and they realized that the US officer had messed up but the one who did the initial update was out so another processed the change. Unfortunately, this US officer was much more vigilant and when she brought back my docs, she said she had disabled my Nexus card and I would need to request a new one online and wait for it to arrive in the mail. I really did not want it deactivated because I wanted it to travel and use the Nexus lane when I returned to Canada. Oh well, it was too late. Scanning the card did let me use the bridge to get back to the Canadian side though,
On Monday night, I processed the replace card request online and selected citizenship change as the reason. I paid the fee and the status of the replacement changed to approved within a few minutes. My Nexus approval status did not change. I did note after the Citizenship update that 1) "Includes TSA PreCheck" showed on my profile and 2) my Canadian passport became my "main" proof of citizenship and had a little flag next to it.
Happy that the citizenship/passport/Nexus update journey is over. Took 1 year and 1 month from start to finish.
