I just checked and I can't replicate this in Episerver 11.4.0 and latest Chrome. What version / browser you on?
Interesting, I do remember seeing a simiilar bug when we were on Episerver 10, I would imagine it may have been fixed now and if you raise it as a bug the first thing Episerver will say is to update to the latest version. It's always best practice to be on the latest so I'd suggest updating if possible.
I am working on my first Episerver Project and I have come across a problem with the UI.
I have a block Type with a PROPERTY LIST property. However when I add more than five items you can't see them all in UI.
http://pasteboard.co/Hf2ynJ4.png < Screen shot
I have another 10 Rows I can't see....
Is this a bug in Episerver??