I'd like to submit to your attention that in case of spiral staircases with a developmente angle greater than 360° (made with stairmaker) the 2D representation is not correct because the arrow stops at 360°.
AC27 latest hotfix
Win 10 Pro 64bit
Double XEON 14 CORES (tot 28 physical cores)
32GB RAM - SSD 256GB - Nvidia Quadro K620
Display DELL 25'' 2560x1440
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