Yes common failure that almost broke the cycling interweb a while back. Here's the AI summary:How did that happen? Was that a "common" failure? Do you have any proof or documents about it? If that was a common failure of that groupset, I am very sure there is plenty of documents, threads or info about it out there.
Or was that some african lorry that blew over some random biker in Spain or a sledgehammer that demolished the bike and a pic was taken to make some weird story about alleged failing 6800 Ultegra cranks?