Step is already on canvas error

If a step is hidden on the canvas in the PDI client, you may receive a "Step is Already on Canvas" error message when trying to work with its transformation.

Regardless of whether a step is hidden or displayed in the canvas, it is listed in the Steps folder under your transformation in the View tab of the Data Integration perspective. To redisplay the hidden step on the canvas, drag it from the Steps folder in the View tab to the canvas.