We're sorry for the inconvenience. If you have time, would you kindly follow the instructions on our Install Instructions section and share with us here so we may help or advice on this issue of yours please.
We have uploaded a new version with a loading bar during the black screen. Could you help us check if you can see it and if it is moving at all? Sorry for the inconvenience!
Its probably because of the browser you are using it did the same thing you have explained for me so i tried using a differnt browser and it started working,try to do the same and see if it works