An applicant with a Canadian Experience Class application (AOR in May) got a UCI update but found the tracker rejected their login with 'invalid information' the very next day.
What the group suggested:- This is a common, temporary issue — it can take more than 24 hours for a UCI update to fully propagate through IRCC's systems, so the tracker may not recognize your details right away.
Practical takeaway:- If your tracker login fails right after a UCI update, wait at least a full day before trying again rather than assuming something is wrong with your application.
- Keep your AOR date and UCI handy so you can retry the tracker login once the system catches up.