Having an issue with chapters for movies that span two files. The movies are in mkv containers and each file has it’s own chapters. Plex indexes the files as a single movie and also indexes all the chapters from both files, updating the chapter timestamps accordingly as if all of them were in a single file.
Everything works fine until a chapter thumbnail from the 2nd movie file is selected. Observed behavior is as follows:
Movie is playing from 1st mkv file (Part 1)
Clicking any chapter thumbnail for 1st mkv file works fine
Clicking any chapter thumbnail from 2nd mkv file always shifts movie to the beginning of 2nd mkv file only.
Movie is playing from 2nd mkv file (Part 2)
Clicking any chapter thumbnail for 1st mkv file shifts to that chapter’s timestamp within the 2nd mkv file only.
Clicking any chapter thumbnail from 2nd mkv file always stops the movie.
Is this a known issue? Can it be corrected in a future update?
I am seeing the same issue! Lord of the Rings (all 3) are each split into 2 movies, the way you have described it, and had been previously working for the last few years..
In my case I set them up as multi-part movies because the append feature of MKVToolnixGUI would generate an error (“The codec’s private data does not match (lengths: xx and xx”)), making the 2nd part of the movie unwatchable after the join. So the append feature is not always the solution.
As aggravating as this exercise has been I did figure out why joining the two parts with MKVToolnix would make the 2nd part of the movie unwatchable. Apparently using the Average Bitrate quality setting in Handbrake to encode the movie parts, make their video incompatible in an MKVToolnix join. Encoding the two movie parts using Handbrake’s Constant Quality setting instead, allows MKVToolnix to join the two movie parts without any errors and the movie plays great all the way through. And as an added bonus…the chapters work too!
