Leaverbuster for corrupt game files?

After the patch, I joined a beginner AI summoners rift match. The game crashed a few times and when I closed and opened back up, it said it had corrupt files and needed to repair them.(immediately after patching, nothing else happened)

So I repaired them and then joined the game, I managed to get in in the last minute or 2 and got a leaverbuster warning when the game ended. That seems like a bug to me that I got a leaverbuster warning over something wrong with your patch/files.