I have no idea what just happened to my substance painter. I leave the software open over night. And this is what I saw in the morning. The painting mode is just like this(the attached photo). But the rendering mode is working properly. When I move the cursor, I can tell that the 3d model is in the right place but just the viewport is scaled down and moved to the left bottom corner for some none understandable reason.
I have tried to reset UI, delete the folder under C - users - documents - adobe and the folder under AppData - adobe. I also tried to reinstall the software. And of course, reboot the computer. Looks no help at all.
Please if you have had the same problem before, leave the message and if you have solved the problem. Please Please let me know. You will just save my life for sure.