No update of ion slide and curious behavior


I want to update a non-visible slide.
Unfortunately this does not work or has a crazy behavior:

If I wipe to the second slide, I would like to update the first slide. That does not happen.
If I click at the first slide on the color (blue), the lettering changed to pink. After I slide through all slides the slide is back to blue.
If I click again and slide through all it remains on pink.

Does anyone have an explanation? Thank you.



has anybody a solution?