Stair deconstruct leads to ouput wrong curve middle z value

I am using the 3.10 version. The stair curves extracted from the deconstruct component output wrong z on the middle points. Is this happening also in 3.9.1?

Check the files attached.

stair-z.gh (3.6 KB)

stair-z.3dm (5.4 MB)

Hi @GabrielB this error has existed since VisualARQ 1. Never noticed it before, thanks!
I’ll let you know when we fix it.