Hello,
It looks like Sonarr have difficulties to find those episodes manually added on disk.
15-2-18 10:00:10.3|Debug|Parser|Parsing string 'The 100 - 2x09 - Remember Me.[HDTV.x264-KILLERS].mp4'
15-2-18 10:00:10.3|Trace|Parser|^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\].*?(?<hash>\[\w{8}\])?(?:$|\.)
15-2-18 10:00:10.3|Debug|Parser|Episode Parsed. the - 100
15-2-18 10:00:10.3|Debug|Parser|Language parsed: English
15-2-18 10:00:10.3|Debug|NzbDrone.Core.Parser.QualityParser|Trying to parse quality for The 100 - 2x09 - Remember Me.[HDTV.x264-KILLERS].mp4
15-2-18 10:00:10.3|Debug|Parser|Quality parsed: SDTV v1
15-2-18 10:00:10.3|Debug|Parser|Release Group parsed: HDTV.-KILLERS
15-2-18 10:00:10.4|Debug|ParsingService|No matching episodes found for: the - 100 SDTV v1
15-2-18 10:00:10.4|Debug|Parser|Parsing string 'The 100 - 2x10 - Survival of the Fittest.[HDTV-h264-KILLERS].mp4'
15-2-18 10:00:10.4|Trace|Parser|^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\].*?(?<hash>\[\w{8}\])?(?:$|\.)
15-2-18 10:00:10.4|Debug|Parser|Episode Parsed. the - 100
15-2-18 10:00:10.4|Debug|Parser|Language parsed: English
15-2-18 10:00:10.4|Debug|NzbDrone.Core.Parser.QualityParser|Trying to parse quality for The 100 - 2x10 - Survival of the Fittest.[HDTV-h264-KILLERS].mp4
15-2-18 10:00:10.4|Debug|Parser|Quality parsed: SDTV v1
15-2-18 10:00:10.4|Debug|Parser|Release Group parsed: HDTV--KILLERS
15-2-18 10:00:10.5|Debug|ParsingService|No matching episodes found for: the - 100 SDTV v1
15-2-18 10:00:10.5|Debug|Parser|Parsing string 'The 100 - 2x11 - Coup de Grace.[HDTV-h264-KILLERS].mp4'
15-2-18 10:00:10.5|Trace|Parser|^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\].*?(?<hash>\[\w{8}\])?(?:$|\.)
15-2-18 10:00:10.5|Debug|Parser|Episode Parsed. the - 100
15-2-18 10:00:10.5|Debug|Parser|Language parsed: English
15-2-18 10:00:10.5|Debug|NzbDrone.Core.Parser.QualityParser|Trying to parse quality for The 100 - 2x11 - Coup de Grace.[HDTV-h264-KILLERS].mp4
15-2-18 10:00:10.5|Debug|Parser|Quality parsed: SDTV v1
15-2-18 10:00:10.5|Debug|Parser|Release Group parsed: HDTV--KILLERS
15-2-18 10:00:10.6|Debug|ParsingService|No matching episodes found for: the - 100 SDTV v1
15-2-18 10:00:10.6|Debug|Parser|Parsing string 'The 100 - 2x12 - Rubicon.[HDTV-lol].mp4'
15-2-18 10:00:10.6|Trace|Parser|^(?<title>.+?)(?:(?:_|-|\s|\.)+(?<absoluteepisode>\d{3}(?!\d+)))+(?:.+?)\[(?<subgroup>.+?)\].*?(?<hash>\[\w{8}\])?(?:$|\.)
15-2-18 10:00:10.6|Debug|Parser|Episode Parsed. the - 100
15-2-18 10:00:10.6|Debug|Parser|Language parsed: English
15-2-18 10:00:10.6|Debug|NzbDrone.Core.Parser.QualityParser|Trying to parse quality for The 100 - 2x12 - Rubicon.[HDTV-lol].mp4
15-2-18 10:00:10.6|Debug|Parser|Quality parsed: SDTV v1
15-2-18 10:00:10.6|Debug|Parser|Release Group parsed: HDTV-lol
15-2-18 10:00:10.6|Debug|ParsingService|No matching episodes found for: the - 100 SDTV v1