Issue description
When you select your elements in 3D you see that the selected outlines don't match the elements, and this is making it hard to select and move etc.
Solution
Modeling far from the origin in Archicad can lead to a range of issues that can impact your project's performance, precision, and usability. The origin point, or (0,0,0) coordinates, is a crucial reference in any 3D modeling environment, and maintaining proximity to it ensures the software operates optimally.
To solve this issue, you will need to move the whole project back to the origin point.
If the main model is already situated on the origin, it could be that you have elements far from the origin within the model.
Please check out the troubleshooting guide for more issues.