(720p HEVC BluRay with Hindi audio). This string looks like a file name often found on media forums or file-sharing communities.
In the world of high-definition encodes, a "fixed fix" suffix usually implies that the initial upload had a corrupted header or a broken index. If your file refuses to seek (jumping to a specific time causes the player to crash), the index is likely broken. To fix a broken index: Open the file in Avidemux.
: