Stumbled upon a possible bug today as I tried to create a cutom rating Scale in the Builder.
The problem appeared as I typed the pos(0.0,0.0) attribute at last in the custom textbox. A compiler error occured telling me that the next textstimuli (under the ratingscale) was invalid.
It seemed to be the case, that the builder compiler did not recognize that the “pos(0.0,0.0)” still needs a closing bracket.
When I switched pos(0.0,0.0) to the forelast position, everything worked fine and the compiler did succesfully detect all parameters.