When I generate a slideshow Shotcut just keeps freezing

[shotcut]

In addition to the upgrade and reboot suggestions above you also need to reduce the project resolution using Settings > Video Mode > Non-Broadcast > 850x480 16:9 NTSC as suggested in this Documentation page

How to Reduce Memory Usage

Here are ways to reduce the memory usage in general: Save and restart Shotcut Close other browser tabs. Close other applications. Reboot (does all of the above). Here are ways to reduce the memory usage of your project: Reduce the resolution of the Video Mode. Reduce the number of tracks. The number of tracks will increase the amount of caching to prevent files from being closed and reopened repeatedly from one frame to the next. Here are some ways to reduce the memory usage while editing: …