Is it a permanent black screen or is it just a flicker? Are the other animations working? What device are you playing on? I haven't encountered this problem yet. I'll look into it the next time I get a chance.
No need for screenshots, but I need to know if you're playing on your phone or pc/laptop. I probably won't be able to get this fixed until the next update since I just released the latest update. I also don't know if this is an isolated case because I haven't heard anyone had this problem. Sorry for this.