Is it possible to have a partially transparent flipbook?

I’ve created several PNG’s that are partially transparent and partially solid; however, when I put them all into a flipbook they appear either appear fully solid or just completely missing the transparent piece. I’ve tried readjusting the opacity in my image editor but it doesn’t help. I’ve also tried playing with the flipbook’s alpha channel and that doesn’t help either. I feel like there is a checkbox or some other setting I’m missing. Below I’ve attached an example of what I mean by partially solid and partially transparent.

Hello! Not sure where can be the problem, but you can check image assets and created sprites configuration…

Hi, thanks for replying! I ended up just changing the flipbook color to the average color of the background. It’s not exactly what I was looking for but I guess it’ll do.