Plex will not recognized files if named that way (e.g. V - Special # or V - #x##).
Based on the naming schema used by Plex, the folder structure / file names should look like this:
TV Shows
  V (1984)
    Specials    <- alternatively you can call this "Season 00"
      V (1984) - s00e01 - The Original Miniseries.mkv
      V (1984) - s00e03 - The Final Battle.mkv
    Season 01
      V (1984) - s01e01 - Liberation Day.mkv
      V (1984) - s01e02 - Dreadnought.mkv
      ...
https://support.plex.tv/articles/naming-and-organizing-your-tv-show-files/
After fixing those names, you might need to do a “Plex Dance” to make Plex forget it already catalogued that series incorrectly.
Edit: looks like 1x01 is an empty file (size is 0)