I just saw this and read the new publication.
Opening different threads with the same problem without providing additional information to what you provided to the first thread does not help to better solve your problem.
In my reply I suggested some strategies for you to try on your computer. did you do any of what I indicated or showed you? If so, and it didn’t work well, why didn’t you post here that the solutions provided didn’t work for you?
This (the user forum), is a dynamic thing. In many cases, some additional information is needed beyond what is provided in the post that opens the thread. The more information, the better we can narrow down where the problem may be.
So this problem arose after a Shotcut update?
In the meantime, you can have a look at the following links:
Shotcut - Frequently Asked Questions- What are the minimum system requirements?
Shotcut - Frequently Asked Questions- Why does it crash on Windows upon launch?
Shotcut - Frequently Asked Questions- Why does it frequently crash on Windows?
Let us know (in this thread) if any of these solutions work for you, please do not duplicate threads.