Sure George, here you go.
Page has BS4 via CDN (.php), Container / Row / Column / Card.
2019-02-09_15-08-04.mp4 (8.6 MB)
As you can see the page is very basic and the issue is intermittent. But you can get the idea. When working with lots of elements in Code View then going back to Design View the changes do not show in many circumstances.
Saving, closing, and opening the page again displays the changes.
Sometimes you have to be careful as Wappler seems to cache pages if they are not closed on exit, then on starting Wappler the cached page is displayed (even though the page was saved). If you accidentally save this cached page all changes made are over-written. That is a separate issue which I am trying to capture when it occurs. Sometimes Wappler crashes in this instance, and memory usage sky rockets.
Thanks George, hope the above helps.