I have an issue with a 3D Half SBS MKV and OSMC 2016.02-3 or Kodi 16.0.
When playing this movie, the majority of subtitles positions are OK but there are subtitles with a wrong horizontal position (the half of the subtitle is outside screen).
Subtitles are IDX/SUB or SUP format, same issue with both. There is no problem with the same MKV and my internal TV player or with a PC player.
It seems to be a Kodi known issue, already fix in Windows version.