We are currently experiencing an issue with our latest package 8.2.1.116 where an old ShortPoint Design Element with connection that fetches data from a SharePoint list/library shows a shimmer display on preview and when the page is published.
In the connection settings of the Design Element, it may show that the connection is successful but it won't show any data. A workaround that can be applied is to reconnect it from the list/library, but there is a chance that it won't display properties such as Images.
Please know that we are actively working on a resolution for this issue and rest assured that we will address it as soon as possible.
If you happen to experience this issue, kindly submit a support ticket here: ShortPoint Support
We will be happy to assist you.
Thank you and we do appreciate your patience.