I found a bug, the shooting mouse aiming point is different from the actual firing point, which is located in the southeast direction of the actual firing point. This bug also affects all mouse-related operations, including ending pornographic images, playing collected floppy disks, flipping movie theaters, and so on
Viewing post in Deep in Brixen Space (18+) comments
The issue lies in how the image is being projected—it doesn't cover the entire screen. In other words, the computer doesn't recognize it as being in full-screen mode. You can resolve this (using my current method) by pressing F11 or accessing the options menu and selecting the "Full Screen" option. Optionally, you could also add a frame around it for better aesthetics.