Hello,
I am having trouble starting the VCGA graph. When I start the (VCGA_Designs/Video_Tutorial/VCGA_First_Steps_Building_Part1.vcga) rule it creates the 3 houses in the viewport, but when I go to the graph view I get this error.

Is 2023.1 not supported? I have tried to repair my install but I get the same results. Any Ideas?