Thanks to the great support of "Puybaret" I was able to solve my problem. 1000 thanks!

I sent you an email. Thank you for your support.

<t>Hi Sweet Team, I'm having a similar problem. A few days ago I discovered the program to recreate my house. After drawing the first etgae, I was looking for a solution for stairs that I model myself. I discovered and installed "StaircaseGenerator-1.0". Reboot. When I tried to open my file, it ...