I am trying to add this icon to my image, but as you can see, although the icon has been added, it is not visible. I have deleted and added it many times; changed the color and transparency; logged out and in; tried an incognito window. I can add any icon other than this one (or another icon I chose that might do). I had this same problem on Sunday (on a different computer at a different location), but somehow it eventually showed up.
Sorry for the trouble. Do not worry; We are here to help you. Could you try performing the same step in a new project? Let's see if that works or not. This simple step will allow us to reach the root cause. We will be looking forward to your response.