Sprite PNG Image appears black with a lime green line through it when testing "live test on device"

Hi! I am creating a drawing/coloring app. I have created a canvas with a sprite that’s a PNG image. When I color on the app on my computer, I can see the image and color underneath the line work, but when I go to the test app, the image becomes a black square with lime green lines around it and across it diagonally.

Here are my screen shots the first one is of my iPhone using the text app and the second is a screen shot of my computer using the web preview…

here’s the link to my project.

Thanks for any and all help!

It looks like it works fine on my iPhone 13 Pro:

Thanks for checking!!