Attempting to add a picture (canvas), but it doesn't get added and breaks the client.

[Icarus123456]

Hi there,

So I'm trying to add a canvas to my design, but when I add it (photo 1), it doesn't show up (photo 2), and when I examine it, it has some ridiculously large size (photo 3). I'm on Windows 10 and the latest build. I've also tried to attach the photo I was attempting to use, but it says it's an invalid file type, despite also being a png file like the other 3?

Photo 1, adding canvas as normal, 100%opacityPhoto 2, disappearedphoto 3, canvas deleted, removes grid and break client

Many thanks