Emulator

What's the problem? Describe what went wrong.

In Qt, Dolphin keeps asking the OS for certain USB devices or whatever it is doing, forever, even when launching and shutting down a game.
It does not stop when the "Add New USB Device" window or the "Config" ("Settings" in code) is closed.

While on the Wx side, things appear to stop properly.
However, in DolphinWx the USB discovery goes through libusbK.sys and the System process, not the Dolphin's process like in the Qt version.

Both cases can be viewed in the supplied videos.

What steps will reproduce the problem?

Start Dolphin. Open "Config". Go to "Wii" tab. Press "Add..." below the big box. Close it.

Is the issue present in the latest development version? For future reference, please also write down the version number of the latest development version.

Yes. 5.0-7503

Is the issue present in the latest stable version?

N/A

If the issue isn't present in the latest stable version, which is the first broken version? (You can find the first broken version by bisecting. Windows users can use the tool https://forums.dolphin-emu.org/Thread-green-notice-development-thread-unofficial-dolphin-bisection-tool-for-finding-broken-builds and anyone who is building Dolphin on their own can use git bisect.)

Later if necessary.

What are your PC specifications? (CPU, GPU, Operating System, more)

Win10

Supplemental Video: Qt case

https://gfycat.com/gifs/detail/FaintCoordinatedBettong

Supplemental Video: Wx case

https://gfycat.com/gifs/detail/SillyDecentGrebe