The video file I'm working on has a lenght of 3m29s (when I play it with VLC). However when I upload the file to the Shotcut, the file becomes 5m28s in lenght. Still the same file, same beginnig and same ending, and also speed doesn't seem to be effected (maybe there is a little bit stuttering).
Frame rate seems to be same (25/sec). Video speed is set to 1,000.
Do you have any idea if I am doing something wrong?