Removing keyframes does not work always

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.

Currently I have switched for my 4k photo videos to preprocess the photos externally to have reusable content. It also fixed my problem with the keyframes because they are now not used anymore (no scaling needed anymore).