Any idea what causes this dutch gable?

[SHCanada2]

 

I can get rid of it by changing the eave width, but of course tha is not what I what. I also noticed the green right angle lines at the corner. I tried tab through to catch something else, and even turned all layers off excet roof planes, baselines, to ensure there was not another roof, but if I can change this roof and it comes and goes, i figure it must be related to this roof

 

 

 

[Mark3D]

If i understand you turn off auto roof return

[SHCanada2]

that was it, i was looking for it in roofs given it was a manual roof, but it is as you show in walls

 

merci buckets