[Bug] MP4 import with FFmpeg or MediaPlayer cuts the end of the video about screentogif

[NickeManarin]

Let's check:

MediaInfo says that the video is 3.337s and the audio is 3.349s.
FFmpeg says that the video 00:00:03.35 which I interpret as 3.350s.
MediaPlayer says the video is 3s which is useless in this case.

I do a 100ms trim while using FFmpeg, because for some reason it fails to grab any frames past that mark:

frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
frame=    0 fps=0.0 q=0.0 Lsize=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

[GregariousJB]

I don't know if this is helpful, but I edited this video using DaVinci Resolve 18.6.3 with the following settings: https://i.imgur.com/emHGHPB.png

(My plan was to crop out the black bars from the video using ScreenToGif because I can't figure out how to do it using DaVinci)