[galaxy-dev] problem with view of list collection in history view

Hi Team, my tool creates dynamically 96 datasets bundled into a list. In the history I can see the number 96 in the top as hidden datasets (6 shown, 96 hidden) When I open the list, I just can see 64 items. Now I run the job again and I have 96 more hidden items. I open the new list and can see 66 items in that new list. What is going on here? Is that "just" a visual bug? Or are my datasets affected? Thanks, Alexander PS: I use postgres