I have a Windows 10 64 bit desktop with an AMD Ryzen 7 2700 eight-core 3.2 ghz processor
I’m using the 64 bit Shotcut version 20.10.31
When clicking on a video track and changing the speed via the properties tab, anything above 24.1x speed will immediately crash the program. It wasn’t crashing at lower speeds so I used the arrows to check at exactly what point it was crashing. 24.2x speed is where it starts happening.