When I open Blender this is what happens when I start a new project. How do I fix this issue? I also tried to add a Mesh, just as a circle and it did what the second picture shows. I don't even know how this happened.
It seems that your startup file has some issues. You can go back to the factory startup file by doing the following:
- Go to File > Defaults > Load Factory Settings. This loads in the startup file that would come with a new installation of Blender.
- Go to File > Defaults > Save Startup File. This saves the current .blend file (in this case, the factory one you just loaded) as the startup one.
- If 1 and 2 do not solve your problem, you may also have to reset your preferences by going to Edit > Preferences (while in the factory file), click on the menu button in the bottom left corner, and click Save Preferences.
- If 1, 2, and 3 still do not solve your problem, you may have to reinstall Blender.