From this, I can infer that the file in question is likely a video that has been updated or possibly re-encoded into a format or quality setting referred to as "2mp4" and is part of a collection or series denoted by "fhdarchivesone405".
This string appears to be a specific filename or an internal database identifier. Such names are often associated with: fhdarchivesone405 2mp4 updated
The reasons behind the update could vary. Possible scenarios include: From this, I can infer that the file