Whenever I edit a window that has a "H-V Grid Custom" sash, the custom grid I have created (whether in the 3D window or an Elevation) reverts back to the equally spaced grid the window had before I edited. It happens even when I edit any attribute of the window: Casing, Frame, Materials, etc. It even reverts when I select a different attribute, without changing anything. It also happens with I open the project PLN file, even though everything was fine when I closed the file.
Is this a bug in AC 18? Is it because I'm using OS X 10.11?
Thanks for any help,
Joel
AC 6.5-28; macOS Sequoia; 2021 MacBook Pro M4 Max
