Confirm which listing you saw
Universal+ says channels and the app can differ because their licensing and distribution arrangements are structured differently. Start with the listing that led you to expect the programme. Was it a channel schedule, a promotional article or an actual on-demand episode page?
Record the title and season or episode, plus the channel and time if relevant. A programme trailer may promote a scheduled showing without establishing a selectable app copy. Keeping the original reference makes the question easier to investigate.
Search the exact programme in the app
Use the complete title shown in the official listing and inspect the season selector where one exists. Compare episode numbers as well as artwork. A collection page can contain selected instalments rather than the whole run.
If related titles appear, do not assume one is the missing programme. Check the synopsis and production details. This is a search method, not a claim that a particular alternate spelling or device will reveal a title the app does not carry.
Separate catalogue absence from account denial
A title that is not listed is a different observation from a listed title that displays an access error. If it is listed but locked, record the account route and message. If it is absent, ask about the specific title’s app availability.
Avoid repeatedly changing passwords when other included titles work and the unresolved question is one missing programme. That does not prove there is no account issue, but it keeps the first support question aligned with the evidence.
Plan a legitimate next step
Check an officially published repeat if live viewing is still an option. If you need on-demand access, ask the service about that route without expecting a guaranteed release date. The cited help explains why differences can occur; it does not promise that every channel title will later arrive in the app.
Questions answered
Can different rights explain the channel/app mismatch?
Yes. That is the reason Universal+ gives in its help article.
Should I assume the title will be added to the app later?
No. The help does not provide a universal future-release promise.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.