When I creat a new node,sometime donsole print error message like this picture.
I checked code and debug and found that node priority are sorted between Event.Layout and Event.repaint.
Hope to fix in the next version.
While I think you forgot the image 🙂 I think I know what error you are refering too. ArgumentException: Getting control 0's position in a group with only 0 controls when doing Repaint?
This is something I must indeed fix.
Thank you for reminding me.