Troubleshooting

If you need further help, ask on the official Cemu Discord Server for assistance.


Cemu

Can’t initialise DirectInput

This can be fixed by unplugging the controller and restarting Windows. Afterwards, plug the controller back in. Ensure you are using the latest official version of Cemu.

Stuck loading or crashing when booting a game

This could be caused by a bad game dump. Try dumping your game from your Wii U again.

It can also be caused by loading an update or DLC as a game, instead of the base game files. Ensure you’re installing updates properly.

Modified illegitimate game copies may also cause this to happen. Dumping your game from your console will ensure you have a working version.

The Legend of Zelda: Breath of the Wild

Full Cemu Wiki listing of issues

System update requested at boot

This is caused by the game not being updated. BOTW must have update version 1.4.0 or above to work. Follow our dumping guide to dump and install the latest BOTW update to Cemu.

Game freezing after “Open your eyes…”

This is caused by the game not being updated. BOTW must have update version 1.4.0 or above to work. Follow our dumping guide to dump and install the latest BOTW update to Cemu.

Constant stuttering during gameplay

This can be caused by shader compilation or Vulkan pipeline cache building. With OpenGL, the shader cache will build up over time and will become unnoticable. Vulkan pipeline cache will build quicker, however has to rebuild every time you update your GPU drivers.

Off-coloured “milky” sea/water

This is caused by the disabling of Full Sync at GX2Drawdone() on OpenGL. You can either enable it, or switch to Vulkan which has it forcefully enabled.

Black/grey sky

This is caused by NVIDIA graphics drivers version 445.87 when using Vulkan. You can fix it for now by reverting to drivers before 445.87 or switching to OpenGL.

Cutscenes (Rito Village/Vah Medoh) cause the game to freeze

This can be caused by setting the framerate to 60FPS. Set it to 30FPS temporarily, then set it back after the cutscene has finished.

Thunderblight Ganon disappears during battle

This can be caused by setting the framerate to 60FPS. Set it to 30FPS temporarily, then set it back after the battle has finished.

Flurry-rush attacks won’t connect with enemy

This can be caused by setting the framerate to 60FPS. We found that if you were close enough, all hits would land anyway. Setting framerate to 30FPS will fix this properly.