When I press and hold on a subject in the photo in the gallery app I press save a sticker it says couldn't save a sticker. In my old phone which was a Samsung Galaxy S10 Plus the method of creating a sticker was easier you just click the stickers button and then there's a custom sticker button and you push that and then you select the picture that you want to use as a sticker and then it works but on my 21 it doesn't let me.
