A bug where 'Lighting Setup Sphere' is duplicated

I am a Korean Blender user, and since English is not my native language, I want to express my gratitude to my inexperienced expressions. I’m using a translator.

I have not noticed before, but in Pablo Vazquez’s video on May 28th
I have two Lighting Spheres showing up.

I keep checking the builds after that, but they are still not fixed, and even the Matcap Sphere of the latest build is shown in duplicate.
I prepared some screenshots.


I expected it to be fixed soon, but Pablo’s screen is expected to be a problem that only me (a few) suffer from under certain circumstances, unlike me, which continued to build until today.
Is there a way to solve this problem?

For reference, my PC specification,
AMD Ryzen 7 1700
Geforce 1050 Ti
Windows 10 Pro x64 1803