The mouse cursor can go off screen on Roblox if you have set the monitor scaling above the recommended limit. By default, the limit is set to 100% (depending on the display resolution).

So, to fix the black screen issue in Roblox mobile, you should try one of the following methods. Clear The Cache For Roblox Mobile One of the common causes of various errors in Roblox is cache files .

Click on the "Update" button at the bottom of the screen to complete this process. Begin playing any one of the games available at Roblox.com. You'll see an empty chat bar at the bottom of the screen.