Archicad's 28 Twinmotion-Datasmith transition from the 27 to 28 update: Incompatibility.
How do you update a project using Datasmith 27 to Datasmith 28?
My project was created in Archicad 28, but Datasmith's only compatible version at the time was 27.
Now that Archicad and Datasmith have both updated to version 28, my project, initially created using Datasmith 27, refuses to update to version 28, regardless of the Datasmith Import setting. Even after deleting Datasmith 27, Twinmotion retains Datasmith's 27 settings, creating twin-offset "double images" of both the old Datasmith 27 and the new Datasmith 28 versions with conflicting objects and finishes.
The problem began on May 25, 2025, when I made the latest changes and updated to the latest Archicad Hotfix 28.2, issued on May 14, 2025. I was then prompted that Archicad was not compatible with Datasmith 27.
I found the problem, "Restrictive Bad Code."
I "uninstalled Archicad 28" and worked backward before the latest Archicad Hotfix 28.2., Issued 5/14/2025.
I installed Archicad to 28.1.1 Hotfix, issued on April 7, 2025, using Datasmith 27, which corrected the incompatibility.
In summary:
Although Archicad to 28.1.1 Hotfix, issued on April 7, 2025, allows using Datasmith 27, the latest Archicad Hotfix 28.2., Issued 5/14/2025 does not allow transitions of previous versions of Twinmotions Datasmith,
