Hi there!
The thing is that the tilt option is probably something that is messing with the angle/rotation property of the character sprite. When the character is dashing, the angle is set to an X value. When it is not, it is probably set the angle to 0.
So when you try to rotate, it will not work, because the angle is constantly being set to 0. At least, that is my guess. But I can easily create a workaround for this on code. Will do it on the next update.