A note, this is two separate bugs: * Toggling widescreen, when using the GPU Renderer, does not handle the aspect ratio correctly until TFE is restarted. It works correctly using the software renderer. * When using the GPU Renderer the weapon is not rendered correctly (most likely offscreen for some reason), but this works at 400p or higher or when using the CPU renderer.
So these are clearly some issues that went under the radar when implementing the GPU Renderer. The renderer is still in Beta but these issues need to be fixed for version 1.0 - so thanks for pointing them out.