I'm starting to program at the moment but have already encountered my first problems.
I Try to program a tic tac toe game with unity using this video: https://www.youtube.com/watch?v=t6rrTYR221w&t=635s. Unfortunately, when I press a field, I don't see the sprite, but the field takes a value so you can win or lose, but don't see where X or O are. The code changes from : https://i.sstatic.net/xz2YI.jpg to https://i.sstatic.net/JLwMN.jpg or https://i.sstatic.net/jdRbe.jpg but nothing happens except when I change it myself.
I tried several things but I have not come any further, thanks.
Looks like the alpha value on the images is set to 0. Open the color picker and set value A to 255
