What is your operating system?
macOS Sierra 10.12.6
What is your Shotcut version (see Help > About Shotcut)? Is it 32-bit?
Shotcut 20.10.31, 64-bit
Can you repeat the problem? If so, what are the steps?
(Please be specific and use the names as seen in Shotcut, preferably English. Include a screenshot or screen recording if you can. Also, you can attach logs from either View > Application Log or right-click a job and choose View Log.)
I edited a guitar lesson together with a separate audio track for my voice and guitar, but when exporting the audio and video together, the audio plays the whole time, but the video cuts out after about 30 seconds. I haven’t had any problems so far and have uploaded 2 videos to YouTube using Shotcut since iMovie no longer works on my OS. Has anyone else ran into this or know how to fix it? I’ve tried exporting the video 3 times now, 2 on my previous version of Shotcut and one with the updated version.
If you run Convert from within the project, Shotcut automatically replaces every clip in the project when the convert job completes successfully.
I agree this could be a problem with the source media but also this could be a problem with the player. For example, if you shot on recent iPhone in 4K60, I have found a lot of players choke on that and especially with a higher bitrate output as produced by a video editor. Try playing the previous export result in Shotcut before anything else.