
The problem was the real menu text must be: `Convert to Polygon Curve` as is Object menu. A GPencil object cannot be converted to mesh in one step. The conversion must be GPencil to Curve and Curve to Mesh.
The problem was the real menu text must be: `Convert to Polygon Curve` as is Object menu. A GPencil object cannot be converted to mesh in one step. The conversion must be GPencil to Curve and Curve to Mesh.