What is your Shotcut version (see Help > About Shotcut)?
The most recent and i’ve tried older versions
Can you repeat the problem? If so, what are the steps?
It’s consistant I even tried on multiple computers everytime I open an MLT file I got a “(not responding”)" for a long while eventually the timeline will load in but then shotcut closes
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.