Possible Issue? (GFX FIFO)

[Bighead]

I was playing Xenoblade earlier, running around in Eryth Sea while encoding a video with handbrake, and I started getting an infinite loop of these errors:

Spoiler: (Show Spoiler)

And so on....

Got it to happen 4 times, standard options, without custom textures enabled, using the latest build. When finished encoding I was unable to reproduce. Handbrake is obviously very demanding and it isn't practical to run while playing games on Dolphin, but I wasn't sure if exterior programs putting a lot of stress on the CPU should affect Dolphin's stability.