Current questions and answers regarding the map editor.

Hello everyone. Can you help me solve a problem? I created an image for the map loading screen. Everything seems to be correct: the size matches, the format matches, and I filled the bottom with black. I insert the image in the editor, launch the game, and the image appears distorted. In the upper left corner of the screen, only a small part of the image is visible, and the image is shifted to the right. Also, half of the screen is filled with black. What should I do?