I've been told before to remove the black screen with Q, E, R, F, G, and T on the keyboard to move the camera around but it never works for me. I have tried to do it with the mouse too... I got an idea today and it worked twice for a client I've had running for almost 24 hours.
It has to be on a shop to work, go to the shop account with a black screen, press enter to open a chat and type /close then enter again. Idk why In ever thought of this before :d
idk if ppl already know that but yea try it ^^