Appending Constant Framerate Videos results in a Variable Framerate Video with wrong duration
I have hundreds of small appendable shots that all have a constant framerate of 23.976 FPS. The duration of all shots combined is 01:49.109. When appending with MKVtoolnix, it creates a video file that has a variable framerate of 24.189 FPS and a duration of 01:48.150.
When appending losslessly with ffmpeg, the appended file retains a constant framerate of 23.976 FPS and a duration of 01:49.109.
I have reproduced this issue on multiple instances. A fix is greatly appreciated.