Hi all, I've had this for a long time - starting in AC15 w/ OS8.5, continues in AC19 w/ OS10.5.
Roof edges randomly refuse to go vertical. Sometimes I can trick them by extending the roof & the trimming it off to a line, but it comes back. I change it to perpendicular (which usually works) but changing back to vertical does not work. This happens on eaves, fascias, and at ridges - 2 planes will meet when clicked but one will not be vertical.
with the roof(s) selected click on the edge(s) you want to adjust . You will get the CUSTOM EDGE dialogue box. Where the two roofs share an intersection you can set the degree of edge slope at the same time. Note that you also have the option to define what kind of a roof edge it is: rake, ridge, valley etc.
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
"Implementing Successful Building Information Modeling"
I have on a couple of occasions had odd single plane roofs migrated forward to v19 that would on doing a zoom extents cause the model to disappear to a small dot in the middle of the screen. Visually all the roofs appeared normal. Not all the roofs were causing it, just the odd one which once identified and deleted brought the zoom extents back to normal.
My problem may not be associated but if it is just one roof playing up then it may be worth deleting it and recreating the offending panel as new in AC19.
Apple iMac macOS Monterey / AC25UKI (most recent builds)