Hi Jet,
You're example worked fine for me. Perhaps try keeping your camera in perspective mode instead of parallel projection. It's easier to see where your control lines are positioned.
Some other things to consider with Shape Bender -
Make sure the control line is not touching the geometry to be bent.
The position of the control line to the geometry is relative to the position of the bent shape to the curve. (if your control line is 5mm from the geometry to be bent, the final bent geometry will be 5mm from the curve.)
The segments in the curve will be relative to how many slices the plugin uses to bend the geometry. More segments in the curve will result in a smoother bent geometry, but will process slower.
The plugin recognizes the direction which the control line is drawn. Using the down arrow will reverse the direction of the control line and flip the start end points and the resulting alignment.
5 The up arrow will toggle which side of the curve the bent shape adheres to.
Be mindful when bending shapes with curves or extra verticies in them that the plugin will have to add triangles to your bent mesh to stitch those faces together. The results can often mess up the shading. Always clean your mesh well (ThomThom's Cleanup script) before processing and make sure your segment count of each curve is reasonable.
The bent shape is also relative to the axis. More predictable results occur when you keep things on the zero Z plane. Not raised into the air.
