Steps to reproduce

1. Go to demoauthor
2. Expand the tree so most of the child pages are shown
3. Publish /travel incl. subpages
4. Go to Tasks app --> approve the task
5. Go back immediatly to the pages app
6. Scroll down/up or try to select a page

Expected results

Scrolling up/down works smoothly

Actual results

Pages tree disappears while the publish operation is in progress.

 

Workaround

Wait until the complete publication is done. This is hard when it comes to installations with large amount of data where multiple concurrent users are working.