Hi Sheila,
I already put this in Discord, but just so it’s here too:
It could be the perspective, but it seems like your inset on the step is a touch higher than mine. That makes the narrow island on the inside the longest and Blender has it fill the length of the UV map first, then everything else. (Red arrows)
I wouldn’t worry about it too much though. The important island for the texture to flow and look as intended is the one in the yellow box and it looks correct to me.


With the UVs every bit of difference in dimensions can sometimes give a slightly different result.
Hope this helps. 🙂