Wii Sports Crashed

[Zekeus3]

I was playing Wii Sports baseball when a textbox that says "Map failed in C:\buildbot\release-win-x64\build\Source\Core\VideoBackends\D3D\DXTexture.cpp at line 295: Map readback texture" randomly popped up. I'm currently on the latest dev build (5.0-14007), and have never seen it before on any other game or channel.