flipbook animation cant be used in widget

i drew 70 different pictures to animate a custom character creation screen that was pretty sweet i turned all the pictures into materials and then into sprites and last into a flip book that i thought i could play in the background of the widget but then imagine my amazement when i found out i couldn’t use it hahahahahahahahaha. I’ve tried making a animated material iIve tried changing the domain but none of it works because i cant find a way to include all 70 textures into a texture sample node and when i try to use param2d node i cant sample the flip book. haha i am really really discouraged from using this engine now i don’t want to waste my time it took me months to make those pictures