A quick and simple guide to fix textures, images, and decals not loading or appearing blank/grey in Roblox Studio by resetting your graphics mode
Steps
1. Open Roblox Studio
2. Go to File then Studio Settings
3. Select the Rendering tab
4. Find Graphics Mode and set it to Automatic
5. Restart Roblox Studio
Music: Valve - CP Violation (Half-Life 2 OST)