Let me know or if the existing logs tell you smart folks something.
Some slow access to the database - 1 second for 5 items. Previously this suggestion was given:
Some Plug-in timeouts - this normally fixes a lot of such issues : https://plexapp.zendesk.com/hc/en-us/articles/201119258-Resetting-System-and-Framework-bundles
Issue with scanning some media : may be setting verbose logging in PMS Settings / Advanced would give more info relating to the media file concerned
Could also try disabling automatic indexing initially in Library settings and bring it later
Feb 26, 2014 10:30:47:104 [7600] INFO - Matched video stream: FFmpeg index 0 (id 0) -> MediaInfo stream index 0 (id 1)
Feb 26, 2014 10:30:47:104 [7600] INFO - * MediaInfo: format=AVC, bitrate=4778850
Feb 26, 2014 10:30:47:104 [7600] INFO - * FFmpeg: codec=h264, bitrate=0
Feb 26, 2014 10:30:47:104 [7600] INFO - Matched audio stream: FFmpeg index 1 (id 0) -> MediaInfo stream index 0 (id 2)
Feb 26, 2014 10:30:47:104 [7600] INFO - * MediaInfo: format=AC-3, language=eng, bitrate=384000, channels=6
Feb 26, 2014 10:30:47:104 [7600] INFO - * FFmpeg: codec=ac3, language=eng, bitrate=384000, channels=6
Feb 26, 2014 10:30:47:104 [7600] INFO - Matched subtitle stream: FFmpeg index 2 (id 0) -> MediaInfo stream index 0 (id 3)
Feb 26, 2014 10:30:47:104 [7600] INFO - * MediaInfo: format=srt, encoding=UTF-8, language=eng
Feb 26, 2014 10:30:47:791 [7600] WARN - Held transaction for too long (Library\MediaItem.cpp:1015): 0.655000 seconds
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xF0
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xF0
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xF0
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xB2
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xF0
Feb 26, 2014 10:30:48:305 [7600] INFO - [FFMPEG] - Unknown entry 0xF0
goes on and on
