Results slide: Total score not immediately shown

I have a project with 5 scenes. The first 4 scenes contain questions and a result slide. The last scene contains a summary and a resultslide (Selected results slides).

When the final resuls slide shows up, the score (%) is not shown. After I navigate back to a previous slide and than navigate to the results slide again the total score is visible.

I already tried to delay the textbox with the result, but this does not help.

Thanks for help/ideas.