I’m not totally sure this addresses our issue, but I will refer the info to our web dev.
The slider exists and operated (on the front end) as expected, but attempting to add or remove a slide on the back end gives unexpected behaviour. Mainly, blanking out the entire slider and all content.
e.g. You have a slider with for example, 5 images each with text overlays, and links to pages from the slider. You attempt to add 1 more slide, previously you were brought to a “summary” pop up that showed all selected images, confirming would bring you back to the slider with all content kept as it was prior to edit with this additional image in place, in the order selected in the confirmation pop up. Now, selecting a new image removes ALL content from a slider, all images/slides are gone and any related information (text overlays, links etc).
I am happy to try the method suggested if you still think that will address the issue I have elaborated on above. Our web dev may know, but just in case, where do I get version 4.5.2?