Slider not working

My slider isn’t working properly. On some pages it acts exactly as it should. But on other pages it does not.

The problem is that when I apply changes to the slider and I save the page, all the changes I have made disappear and the slider appears as it was before. This is only the case on some pages.

In the example page ( https://www.thegreentrails.com/stockholm-excursions/stockholm-activities-stockholm-adventures/ ) there is a empty slide. I remove this slide, add some other ones, but it keeps removing all content from slide nr 3, and remove any slide above nr 5 automatically after saving.

On some of my new pages where I enable the slider and fill it with content it just doesn’t show on the page, eventhough all the settings are correct at the back end. The only way I have found around this was creating a new page, copy all content form the old page to the new, and copy the slider info as well. Most of the times this works on new pages. But then again, not on all.

I use Minamaze Pro. Thank you.

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