[Affected versions]: - Nightly 59.0a1 [Affected Platforms]: - All Windows - All Mac - All Linux [Prerequisites]: - Have the latest try build 59.0a1 from (2018-01-05) installed. - Accessibility tab is enabled and focused. - The Web Console is half shrunk. [Steps to reproduce]: 1. Click and drag the cursor through the listed items from the "Properties" panel. 2. Let go of the mouse click when selecting the last item. 3. Press "Ctrl"+"c" keys. 4. Open a text editor and press "Ctrl"+"v" keys. 5. Observe the pasted text. [Expected result]: - All the selected text is copied and pasted correctly. [Actual result]: - Few of the last items are not pasted. [Notes]: - This is not reproducible with the left ("Role&Name") panel. - This is not reproducible either if the entire content of the panel is displayed. - Attached is a gif with the issue.

Because the Tree component only renders on screen nodes, copying and trying to pate more nodes that are visible on screen does not work.