Emulator

Game Name?

Mario Kart Wii — RMCE01 (MD5: bb7f2c926cbcdee65e2a48b7002a52ea)
Sonic Heroes — G9SE8P (MD5: b8c74bdcebb29eadd8b9a6c7e1899216)

What's the problem? Describe what went wrong.

When using the Direct3D 11 backend, changing most graphical settings (and sometimes even just opening the Graphics Configuration window) can make these two games crash with this error:
DX11::FramebufferManager::FramebufferManager failed in FramebufferManager.cpp at line 151: create EFB color texture (size: 640x528; hr=0x80070057)
In earlier builds, the line number in the error message is 122.
Whether or not the crash occurs appears to be random, but it doesn't take more than a few changes for it to crash. Even mundane settings like "Show FPS" can cause this crash.
Out of the ~45 Wii and GC games I've moved to my PC, Mario Kart Wii and Sonic Heroes are the only two that cause this crash. The game's state does not appear to affect whether or not the crash can occur; for example, in Mario Kart Wii, it can occur on the Wii Remote safety splash screens, in menus, or during a race, and probably everywhere in between.
This crash still occurs with a fresh Dolphin installation with minimal configuration changes.

This same error message is seen in issue #10348, which also features Mario Kart Wii. However, I'm not sure if these are the same issue. For one, the Dolphin version listed in the issue description is earlier than the version I found through bisecting. They also mention much more specific reproduction requirements (go to save selection screen, change internal resolution) than this requires.
While it's still possible that these are actually the same issue, the problems described by xerxes in the first note are definitely a completely different issue. The "hr" number in their error message is different, they don't mention changing any graphical settings to cause the crash, and their graphics driver also crashes. However, that issue appears to have been assigned based on xerxes' note.

Is the issue present in the latest development version?

Yes (5.0-5620).

Which is the first broken version?

5.0-4693.

What are your PC specifications?

CPU: Intel i5-7600K
GPU: NVIDIA GTX 1060 6GB
OS: Windows 10