Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: Intel(R) HD Graphics 4600 Intel 4.3.0 - Build 126.96.36.19935
Broken: version: 2.80 (sub 69), branch: blender2.7, commit date: 2019-05-17 23:36, hash: rB03672e77836d
Short description of error
Sometimes (it happens two times), when moving or adding a camera, it doesn't show in the viewport, instead a glitchy thing show, when going to it with numpad . . It isn't possible to move it, or anything. And even by restarting the project, it's still glitchy, don't know what to do. And even duplicating a camera, or adding another one, they are all glitchy, except the camera that I added before.
Exact steps for others to reproduce the error
I don't know exactly how I did it, I just added a camera and it goes glitchy, really sorry for this. I think it is a problem with a move in orthographic view. But you can see what it gives by going to the .blend file, and Numpad . on the Camera.005, to see it :