Portal dependancy loop

Graph - https://1drv.ms/u/s!AmLT_mijSNojtt43EkbRXUieKmS7iw?e=bG54QP
Screen shot - https://1drv.ms/u/s!AmLT_mijSNojtt4wvD_2_ymFJsrM7g?e=tQwpOR

Download files above
Create new scene
attach graph to mapmagic
click on exit portal select 'Height'
Observe error