Series component order problem

[yerisen94]

I’m trying to modelling stairs from the project plan. However, there is a sorting problem.
There are 13 stairs, and the second stair is acting like 13th stair.
What to do?

[Fred_C]

Welcome @yerisen94
How to ask effective questions

[vikthor]

you just need to order the surfaces

[yerisen94]

I made it
Thank you very mucho