With SketchUp 2024 and 2025 introducing "Push/Pull on curved surfaces" natively, you might wonder why you should use a 2021 plugin. Here is the truth:

If the tool isn't working as expected in SketchUp 2021, check the following:

Extruding extremely complex or "dirty" meshes with tiny edges can cause the plugin to freeze. Clean your model with "Fix Problems" before running a heavy extrusion.