I am having difficulty with the flood selection tool on my Ipad pro. I am new to the Affinity program, and am working my way through the workbook to familiarize myself with it. So far, so good.....until chapter 2’s “creating a flood selection” section. Using the file suggested, and the suggestions from online, I cannot get it to work. The workbook image (flood-select.jpg) is already in pixel layer, but I did try rasterizing after all else failed. I’ve changed layer, mode, tolerance, contiguous, and still cannot get any response from the tool......nothing happens. I can choose the freehand selection tool, and that works fine on the image, but not the flood selection tool, which is the one I need. Thanks in advance for any other suggestions you may have.Help