Libby Issue

I've been having an issue with libby where sometimes when I try to start playing an audiobook at anything other than 1x speed it will give me a playback error and I will have to just start it at 1x speed and then adjust the speed after it starts playing but as of this newest update even that won't fix it. Does anyone know of a way around this ? I've just become so accustom to 1.75 speed that I can't go back to normal and I don't want to buy my books on audible