Hi there is a bug intersecting composite walls and columns (see attach)
Archicad-27.2.1-Hotfix-FRA-INTEL (5030) Operating system used: Mac
Intel-based Monterey 12.7.4
Hello Alexc, It sounds like you work on a Windows system. The shorcut
"Shift alt" is a Windows one to cycle between Keyboard multiple
definitions. Disable all the Keyboard definitions except for the one you
need,