Version 6.2.22
Every time an HTML scene is selected and displayed within the scene editor, then I try to (Save / Upload) the studio gets deemed and freezes permanently, the only way to get out is to kill the window, and the changes get lost, so when I open the studio again I have to make all the changes again.
The current workaround I use: change the display to any other item other than HTML Scene, then save, that will work.
It is a pain because if I forget to do that, all the new and unsaved work is lost.