Hi Dorin, tank you for testing. I've seen it that way too.
I'm still learning. The settings of insets are ok for scaling 2, but not for scaling 1. I have seen elsewhere in the code of SH3D and in the plugin "Generate Stairs" how to make the insets dynamic. I'm not doing a separate version, either it's running as it should or I'm not releasing anything.
I'll get back to you when I've tested it for both scales.