I was trying to build an GUI using canvas in PD, then i put three pdp_colorgrid, to select colors. Then i realized that it is kind incompatible, if you try to close the edition mode of the canvas, you will find out that it is impossible to open it again. I had to edit the text code to delete the colorgrids, it solved my problem, so im pretty sure that the colorgrid was the problem.
Is there any reason to that? Am I saying bullshit?