Gran Tursimo HUD Spec III is now compatible with latest CSP, please ensure everything is updated before reading the following content.
Black HUD Textures
Gran Turismo HUD V3.0.3 / V3.1 Preview 3 and below are incompatible with CSP 0.25 and upward.
Please update your Gran Turismo HUD to latest version or stay with CSP 0.24 / 0.25 Preview1 and below.
Black Skybox
If you get a glitched graphics when weather changed in Pure, please update your Gran Turismo HUD & CSP to the latest versions.
For temporal fix without any updating, disabling the skydome then save the config. (Pure Config -> Clouds -> Clouds Render Method: 0)
Restart weatherFX system / re-enabling the skydome without selecting the already broken weather also solves the issue, but this method needs to be done every time after game start.