What is your operating system?
Not relevant here!
What is your Shotcut version (see Help > About Shotcut)?
23.05.14 and all previous version I did use
Can you repeat the problem? If so, what are the steps?
When I do create a slideshow video I do make the realignment and color grading of the photos directly in Shotcut.
The Slideshow comes with keyframes which crashes my realignment even when it is set to 0% zoom increase.
After the hole timeline was selected and the keyframes have been removed in the filter section with the clock symbol 50% of the keyframes stay strangely persistent and have to be removed one by one.