Emulator Issues #10170
Installing a WAD can result in crashes and "corrupted system memory"/out-of-space messages
Installing a WAD from Dolphin's game list or directly from emulation doesn't create required directories on the NAND. This causes "corrupted Wii system memory", "no free space on Wii system memory", or even crashes (e.g. for the Weather Channel).
And since the title is considered to be installed, these directories will stay missing and the issues will persist until the user creates them manually.
We should fix this issue in both the emulation code path (IOS) and the install WAD feature, and maybe fix previous NANDs if that's possible.