Can you post a screen shot or two?
I am not seeing this problem but it is hard to say without knowing your exact settings.
There is a version 20 stair in the version 20 library as well.
Try searching for 'stair' in the object settings dialogue and you will see a lot of stairs in your loaded libraries as well as in BIMComponents.
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