Compare versions before following screenshots
Find the installed IINA version and the date or release shown in the tutorial. IINA’s 1.5.0 notes describe a new Settings window, separate Video and Audio pages and updated Quick Settings and layout controls. An instruction can therefore express a valid goal using a previous arrangement.
Search the actual menu labels rather than assuming a missing screenshot proves you downloaded a counterfeit copy. Verify the publisher download route separately if provenance is uncertain. Interface appearance alone is not enough to establish either authenticity or a failed installation.
Translate the goal into the current interface
Identify what the tutorial is trying to change: an audio output, a subtitle choice, a window layout or an advanced mpv option. Those goals belong to different controls. Choose the current matching page and record the previous value before making the change.
Do not paste a block of advanced options merely because you cannot find an old checkbox. A direct interface control is easier to understand and undo. If a feature was removed or renamed, use the publisher’s current release notes rather than guessing a replacement.
Separate layout changes from playback faults
A wider sidebar or a different control position can alter how the player looks without changing media decoding. Test the actual action you need: choosing a track, entering full screen or returning to the playlist. A UI preference should be judged by that outcome.
If the problem is sound reaching the wrong device, record the version and active output. The same release notes include output-related fixes, which makes version information relevant; it does not establish that every sound problem has that cause. Keep the underlying symptom in the report.
Preserve a useful update comparison
Before updating, note the current release and the smallest action that fails. After updating through the genuine route, repeat that action before adding plugins or changing several preferences. This establishes whether the new version changed the relevant behaviour.
A screenshot for support should show the specific control and version while excluding private media URLs and account names. If the current menu still does not expose the documented option, report the installed build and Mac version. Avoid downgrading just to imitate an older tutorial without considering its requirements.