I am having trouble creating what I think should be a simple roof plan.  I have three roof planes across the front and three across the back.  I raised the center front plane over a porch.   My problem is how to connect the planes.   The three along the back will not connect even though they have same pitch and I have essentially butted them against each other.  The little fascia at the top of the front pitch will not generate either.   What am I missing?  I am using HD Pro 2024.   I tried to upload the plan but it failed.
 
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