Support
FLV Video Player Pro works locally and requires no account. Start with the steps below; if the issue remains, send the non-content diagnostics report to support.
Confirm the file is a local .flv file and is not still downloading. UNC paths, mapped-network drives, and paths involving reparse points are rejected; copy the file to an ordinary local folder. The Health Card distinguishes a wrong extension, invalid signature, and truncated structure.
Older FLV files may have no keyframe index or may end mid-tag. The app disables unsupported seeking and labels best-effort navigation instead of pretending the timeline is exact.
Profile B supports FLV1 video with MP3 audio. Open Tracks and Health to check the reported codecs and stream count; H.264, AAC, F4V, other combinations, and damaged streams are outside the supported playback scope.
Use Add subtitle during playback. Choose a local SRT, ASS, SSA, or WebVTT file no larger than 4 MB, encoded as strict UTF-8 or BOM-marked UTF-16. The app validates and temporarily stages it for the local playback engine.
Contact support
Include the app version, Windows version, what you clicked, and the exported diagnostics report. The report describes structure and codecs; it does not include video frames. Do not attach the source video unless you intentionally choose to share it.
Stop playback, close the file, then reopen it. This recreates the local decoder session.
Use the queue menu to clear recent items and saved resume positions from local app data.
The app never edits the selected media file. Reports and screenshots are written only to a location you choose.
