I am using (trying!) 20.07.11 which I could find if it is 32bit or 64bit, sorry!
About the source videos: all of them sent by friends and made up in cell phones.
The problem is that until yesterday I was using the app perfectly (sometimes it did shut,but only really a few), now I can only take one step and then it closes.
About the resolution: from the sources I don’t have any idea but I have chosen video mode as “HD 1080p 60fps” if this assists us go ahead.
My log text file (as per you taught me) appears as 0kb!
The log file is 0kb because you have Shotcut open. When Shotcut crashes or is closed is when you get the shotcut-log is filled in. Next time Shotcut crashes on you, and before you open Shotcut, upload the file here in the reply window.
If you are working with cell phone video, it’s possible the files are Variable Frame Rate (VFR), which can cause issues with any video editor. Click on any video clip, and then click on properties. You may see something like this.
Converting your footage may help the issues you’re having. Shotcut has a helpful Edit Friendly converter built in.
Click the 3 lined icon button
Convert to Edit-friendly