Yumina the Ethereal is giving me a black screen (error code hr8876086c)

Windows 10 has some known errors for Yumina. Fullscreen mode has fewer reported issues, but we've found the following can work as a fix on some systems:

1. Right click the Yumina shortcut or .exe open its properties.
2. In the compatibility tab, disable "display scaling high DPI settings". 

Alternatively:

1. Right click the Yumina shortcut or .exe and open its properties.
2. In the compatibility tab, select to force 640×480 resolution.
3. Load a game, or start a new game, and go to the settings menu and check 'show settings on startup' in the other tab.
4. Quit and restart the game.
5. Change the settings to Fullscreen 32-bit (or 16 bit), then change the texture settings to use Anisotropic filters. Finally, check the 'Use Hardware T&L' and 'Use MipMaps' settings.