Trapdoor, I can confirm I get exactly the same problem using the same splash screen image. This was with a navboot in which I changed the splash screen myself, so it's not just a glitch in the one you created.

The large accident icon, which is displayed when you select details from the TMC message list, is just a random mess for the top 2/3 of the icon. The smaller symbol on the map looks OK, but it was the one without the red triangle as the accident was not on my route, maybe the one with the red border would also be corrupt.