Steps to reproduce:
Create a new empty project
Add a text
Add a virtual button
select text and type something in the 'text' field, do not confirm
select the virtual button while the 'text' field is still selected
the editor crashes with a UE
#2, unable to change virtual button name in properties editor, the new name seems to take effect but de/reselecting the button shows the original name
#3, folders in the media tree still do not work, all media is added to the root
and it would be nice to pan the view with the middle mouse down