Trying to get Prime 1 from the trilogy started on my setup (admittedly underpowered for this probably) and I can get through the Prime Trilogy launcher and Prime 1's opening cutscene with no problems. However, once the actual game starts I run into major graphical issues, with a flickering "Metroid Prime Loading" overlay on a corrupted HUD. The game runs half-decently (as I'd expect from my hardware), but is effectively unplayable since it's very difficult to see anything, and it is not fixed by going into menus. Here's a screenshot to demonstrate, from the exterior of the Space Pirate Freighter at the start of the game:
This issue does not seem to be documented on the Dolphin wiki page so I'm not sure what to do. This was observed on the development build 5.0-8299, by the way. Thanks in advance for your help.
Spoiler: