Yeloow triangle errors

[Anonymous]

Using Autocad for Architecture 2020 I get the yellow triangle with the exclamation mark on all walls in sheet view.  But they do not show up in constructs or view mode.

[pendean]

Similar post here https://forums.autodesk.com/t5/autocad-forum/yellow-triangle-with-and-exclamation-mark-inside/td-p/7...