The search term has been trending within niche tech support forums because this particular file encoding (HEVC/H.265) is notorious for compatibility problems on older hardware and software.
While H.264 files play on almost every device, H.265 offers better compression (smaller file size at the same quality). However, this comes at a cost: heyzo1122 fix
Happy viewing, and may your playback be smooth and your audio in sync. The search term has been trending within niche
Look at the file extension. If it is .mkv instead of .mp4 , the fixes above still apply—just ensure your player (like VLC or MPC-HC) supports Matroska containers, which all modern ones do. Look at the file extension
Remember: You do not need to delete the file. H.265 is the future, but legacy hardware requires legacy solutions (H.264 conversion) or modern software workarounds.