Collider material/box

Im working on an airport for MSFS2020 and MSFS2024.It is mainly for MSFS2020 so its nice that we can just drag and drop the package so it will work in MSFS2024 as well.
So the project is not a MSFS2024 dev project at all.

I’m interested to do the interior stairs to be like colliders so in MSFS2024 with Avatar mode you can climb those stairs, I tried with collider material, tried with collider box (MSFS2020) but didn’t made it to work.
Can you guide me please a bit?

Both collision material and collision shape works for the avatar in 2024
And confirm from both 2020 and 2024 project

Check with debug collision in game that your object have them set correctly

Hmm strange, I tried that with an animated bus so I can get inside the bus with the avatar and drive around.Is this manageable?