Hello @Goombs,
I have some questions.
- You never stated it, but can I assume it is the same mlt file you are trying to open across different computers?
- This mlt file once worked obviously. Can you remember how long ago you were successfully able to open it, and do you remember the Shotcut version it was created in?
- Did this happen after an upgrade?
- Can you start a new empty project and work in that without crashing?
Version number please, I assume 23.09.29? If someone comes along a week from now and there is a new release just prior to that, your answer will no longer be valid.
You can also try a full reinstall, including removal of registry entries and temp folders.
I’m guessing there’s no backup? Upload the mlt file here (just the mlt) and someone can take a look, since it is possibly borked.