It wasnt advanced project so I made new one and save every time after changes. Problem happend when I put furnitures like windows and drag them at the edge of 2d view window. "see all levels" option doesnt help. I have sent the file to puybaret.

Ui looks very weird after that happend looks like bugged.
https://ibb.co/e9tFy5

How can I set view to deafult? After moving furniture my screen went white in 2d and 3d view. Couldnt see nothing from my project