Two entries with similar names can use different sources, encodes or delivery paths. One working does not prove the other is identical. Compare the exact listed version and report it accurately when investigating a source-specific fault.
Keep the programme constant
A different regional edition may carry another schedule or audio. Note the displayed name and version without assuming the largest resolution label reflects genuine source detail. Player information can help when it is available.
Compare useful behaviour
Record startup, continuity and audio for each version on the same device and connection. If only one repeatedly fails, that is valuable source-level evidence. A whole-home router reset is unlikely to be the most informative next step.
Avoid unsupported conclusions
A backup entry may work through a different route, but the label alone does not establish how it is delivered. Ask the provider about the failing version and keep the successful alternative available if you are authorised to view it.
