I'll start with the tl;dr. Scroll down if you want a more detailed description of what's going on.
TL;DR
These folders (each containing only a single MKV with the same name as the folder) yield inconsistent results when adding to my library.
- Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
- Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
- Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
- Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
Does NOT work
The episodes are not added if they are in the S02 subfolder.
/volume1/videos/tv/Youre.the.Worst.S01-S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S01.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S02.720p.HDTV.x264-SCENE
│ ├───Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
│ ├───Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
│ ├───Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
│ └───Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
└───Youre.the.Worst.S03.720p.HDTV.x264-SCENE
Works
The episodes are added if they are in the show's root folder.
/volume1/videos/tv/Youre.the.Worst.S01-S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S01.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S02.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
├───Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
├───Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
├───Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
└───Youre.the.Worst.S03.720p.HDTV.x264-SCENE
Details
I have noticed that given the following file structure (I've included the file listings here for the sake of completeness)
/volume1/videos/tv/Youre.the.Worst.S01-S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S01.720p.HDTV.x264-SCENE
│ ├───Youre.the.Worst.2014.S01E03.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.2014.S01E03.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E04.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.2014.S01E04.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E05.720p.HDTV.X264-DIMENSION
│ │ Youre.the.Worst.2014.S01E05.720p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E06.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.2014.S01E06.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E07.720p.HDTV.X264-DIMENSION
│ │ Youre.the.Worst.2014.S01E07.720p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E08.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.2014.S01E08.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E09.720p.HDTV.x264-2HD
│ │ Youre.the.Worst.2014.S01E09.720p.HDTV.x264-2HD.mkv
│ │
│ ├───Youre.the.Worst.2014.S01E10.720p.HDTV.X264-DIMENSION
│ │ Youre.the.Worst.2014.S01E10.720p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.S01E01.720p.HDTV.x264-IMMERSE
│ │ Youre.the.Worst.S01E01.720p.HDTV.x264-IMMERSE.mkv
│ │
│ └───Youre.the.Worst.S01E02.720p.HDTV.x264-IMMERSE
│ Youre.the.Worst.S01E02.720p.HDTV.x264-IMMERSE.mkv
│
├───Youre.the.Worst.S02.720p.HDTV.x264-SCENE
│ ├───Youre.the.Worst.S02E01.1080p.HDTV.X264-DIMENSION
│ │ Youre.The.Worst.S02E01.1080p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
│ │ Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.S02E03.720p.HDTV.X264-DIMENSION
│ │ Youre.the.Worst.S02E03.720p.HDTV.X264-DIMENSION.mkv
│ │
│ ├───Youre.the.Worst.S02E04.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E04.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E05.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E05.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E06.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E06.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E07.1080p.HDTV.x264-SERIOUSLY
│ │ Youre.the.Worst.S02E07.1080p.HDTV.x264-SERIOUSLY.mkv
│ │
│ ├───Youre.the.Worst.S02E08.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E08.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E09.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E09.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E10.INTERNAL.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E10.INTERNAL.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
│ │ Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS.mkv
│ │
│ ├───Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
│ │ Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET.mkv
│ │
│ └───Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
│ Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS.mkv
│
└───Youre.the.Worst.S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S03E01.720p.HDTV.x264-KILLERS
│ Youre.the.Worst.S03E01.720p.HDTV.x264-KILLERS.mkv
│
├───Youre.the.Worst.S03E02.720p.HDTV.x264-KILLERS
│ Youre.the.Worst.S03E02.720p.HDTV.x264-KILLERS.mkv
│
└───Youre.the.Worst.S03E03.720p.HDTV.x264-KILLERS
Youre.the.Worst.S03E03.720p.HDTV.x264-KILLERS.mkv
The following releases are omitted from the library:
- Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
- Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
- Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
- Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
But if I pull those 4 episodes out of the S02 subfolder and stick them in the root folder for the show, they are added just fine, e.g.
/volume1/videos/tv/Youre.the.Worst.S01-S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S01.720p.HDTV.x264-SCENE
│ ├───Youre.the.Worst.2014.S01E03.720p.HDTV.x264-KILLERS
│ etc.
├───Youre.the.Worst.S02.720p.HDTV.x264-SCENE
│ ├───Youre.the.Worst.S02E01.1080p.HDTV.X264-DIMENSION
│ etc.
├───Youre.the.Worst.S02E02.720p.HDTV.X264-DIMENSION
├───Youre.the.Worst.S02E11.INTERNAL.720p.HDTV.x264-KILLERS
├───Youre.the.Worst.S02E12.REPACK.PROPER.720p.HDTV.x264-FLEET
├───Youre.the.Worst.S02E13.720p.HDTV.x264-KILLERS
└───Youre.the.Worst.S03.720p.HDTV.x264-SCENE
├───Youre.the.Worst.S03E01.720p.HDTV.x264-KILLERS
etc.
Summation
Ostensibly this seems like it might be a bug. I've racked my brain trying to figure out why sibling folders that follow the exact same naming conventions are added. At first I thought maybe there was some sort of hidden escape character in the path or something that I wasn't noticing, but that theory is alleviated when I move the problematic episodes to series' root folder. I thought maybe it's because of the INTERNAL and REPACK.PROPER designations, but that doesn't explain why episode 10 is added just fine or why episodes 2 and 13 are omitted; plus, again, it's inconsistent with the behavior when the episodes are in the series' root folder. It's also odd that only S02 is affected and not S01 or S03.
Anyone have any ideas?