What is your operating system?
Linux Ubuntu 18
What is your Shotcut version (see Help > About Shotcut)? Is it 32-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.)
One day I closed the system without closing first the Shutcut. In result after computer restart I was not able to open any of my projects. All had the following problem. I opened them, the computer was “thinking” few seconds and then it was closing the shutcut. I tried to turn off playlist and timeline thumbnail generations but it didn’t help. Finally I had to delete all hidden data in my home directory (I turn on the option show hidden files, then I searched for “shotcut” frame and then I deleted everything which was displayed (chache, config etc)). After that I was able again to open projects normally.