Emulator

Game Name?

Occurred in every game I tried.

What's the problem? Describe what went wrong.

Using Vulkan with Vsync enabled and in fullscreen: activating or deactivating the "Disable Emulation Speed Limit" hotkey immediately flashes black over the entire emulation window for a brief period of time, and also occasionally flashes a very noisy garbage-like visual effect, then afterwards it goes back to rendering the game correctly. The entire process takes less than a third of a second. These effects also affect the overlays supplied by Dolphin, like the FPS counter or lag meter.

What steps will reproduce the problem?

Use Vulkan, enable Vsync, be in fullscreen, hit the Disable Emulation Speed Limit key.

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

Occurs in current dev build 5.0-5564
Also occurs in every version all the way back to 5.0-991 and 5.0-985.
The disable emulation speed limit function doesn't seem to work in the first available Vulkan version (5.0-750) so I couldn't test to see if it occurred there and other versions up until 985.

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

Windows 10 x64
Intel Core i5-3570K
Geforce GTX 760 (latest drivers)
Two monitors

Is there anything else that can help developers narrow down the issue? (e.g. logs, screenshots,
configuration files, savefiles, savestates)

Shadowplay, screenshots, and even printscreen don't capture the flashing or visual garbage so please forgive the extremely bad cell phone picture showing the visual errors.