Customer raised the issue in the suppor ticket SUPPORT-3906 and added also a video of it.

I tested it in parallels and can confirm the same behavior.

Description:
On various actions the whole tree shifts quickly down and up again. It is good viewable on the right side of the scroll bar.
The actions where it was seen:

• adding a node
• adding a property
• renaming a node inline
• renaming a property inline

It seems that it happens every time, when the tree needs to be updated for displaying the added change.

UPD:
After some research it was concluded that the issue might be related to the core Vaadin functionality (see http://dev.vaadin.com/ticket/14784#ticket).
UPD2:
Can only confirm what is stated in the Vaadin ticket mentioned above. I tried to debug the client-side code of TreeTable but it feels like looking for a needle in a haystack and could not pinpoint any evident cause for this behaviour on Windows. Can only add that apparently MS Edge and IE11 do not show the problem.
UPD3:
The attached video is Chrome 57 on Windows 10. Jumping can also be reproduced on Firefox 52.