I assume you are creating views of the plans sections and elevations, and then adding those vies to your layouts with the drawing tool.
If you are not, then you should be.
Those views contain settings that tell the drawing how to display.
Check those settings and see what you have for the Model View Options.
Or it could possibly be the wrong Renovation Filter being set (probably MVO though).
You can check the view settings by right mouse clicking on the view in the view map of the Navigator dialogue.
Or if you are unsure which view is used on the layout, right click on the placed drawing or on the drawing in the layout list of the Navigator and choose "Modify Source View Settings".
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11