2022-07-12 04:34 AM - edited 2022-07-12 04:41 AM
If you go down, it will appear in 2D again.
2022-07-12 05:04 AM
Check the Floor Plan Display of the window - symbolic, projected with overhead, etc.
It may be that it is above/below your Floor Plan Cutting Plane and the Floor Plan Display of the window will set if you can see it or not.
I generally have all my walls, doors and windows set as symbolic because I 99% of the time want to see them as being cut - unless I need to show them specifically as above or below the FPCP.
Barry.