hi all, i'm new to unity and i've been playing with unity UI , button, scroll rect, canvas, and such. now i'm making my App (yes, App, not a game). start this project about a week ago, find no errors whatsoever, but now i'm facing an issue. my unity goes not responding, whenever i 'set native size' for my image. tried to close unity, open it again, did that a few times, but it keep crashing. anyone know why is this happening?