Shen's damage is bugged when you look at the stats
League of Legends Match History
Damage not bugged in game only after game stats it says -2147483.6k.
Damage not bugged in game only after game stats it says -2147483.6k.
I just had the same issue. The graph damage was correct, but the stats said the -2bil number for true damage dealt and total damage dealt.
Since -2.147 billion is the max binary representation of an int, and his graph damage still works, I would assume that somewhere in the stats code, something is increasing the binary number for shen's damage to all 1's.
Edit: Now that I check the photo, I just want to add that mine occurred at the victory screen after the match ended.