Why is my group sorting incorrect?
this is my group template.
using assignTreeVertexValues
Did you set a breakpoint in your method override to make sure it is working as you would expect? Your Group template doesn’t seem to use GoTreeLayout.
Can there be a problem when using a general node and a group node together?
Perhaps, but it isn’t clear to me that your group’s Group.layout, which appears to be an instance of a plain TreeLayout, is sorting its member nodes. If that is indeed what you are asking about.