I created 4 projects. Each with many mp4 files (full HD) and some dia-shows. Then I rendered each project to a mp4 video.
(The reason for the 4 projects was to recuce the load time on start, because kdenlive does crash very often)
For finally video I created a 'summery' project and put the 4 rendered mp4 videos in it.
Now I checked the result and found that some modifications in the projects are necessary.
Removing or shorten some video scenes in some projects and removing some pictures in dia shows.
Now I have the problem that after loading a saved project kdenlive still shows the 'old' length of dia-shows and in the summary project still the old length of the video clips. It repeat dia-shows from beginning or hold a picture in a video clip to fill the remaining length of the clip.
This is maybe a feature in kdenlive but what can I do to see the real changed video clips and can rearrange it ?
OK, I can remove the video file in the project and load it again but then I also lost the audio settings in this video clip (loud/quiet) and this would be a lot of work to recreate it.
Thanks for a hint.