[resolved] Bug in new version 24-05-0?

After an update without problem of many packages under Manjaro Gnome, and in the process, the new version of Kdenlive … all my tired videos no longer appear in the project instructor. They exist on the Time Line but does not appear “on” the video below during monitoring. Is it a bug?

PS: Sorry but not speaking English I use a translator, I hope that the translation did not distort my text

Please post a screenshot of the Kdenlive project

I thought I put a screenshot where we could see that the title clip was not displayed on the project instructor.
But it’s weird, because I just reopened the project and everything is ok. The fact of having inserted a new video sequences and adding a title clip has everything replaced !!!