I Must Be Really Unfortunate To Have Experienced Every One Of These:(
Explanations: Minecraft: Block texture goes missing, Magenta and Black to catch the eyes of the devs. Roblox: Mesh is shape, skin is pattern, skin goes missing. Scratch: They update a base skin, the OG looks like this. Subway Surfers: Older Date (For example, date is set to January 16th, 2009, and a skin didn't exist back then, or wifi crashes.) Regular is an example of how the original would have looked.