Why are the logs red for huntsman and destroyer?

https://www.warcraftlogs.com/character/id/47579522

You applied Find Weakness (Subtlety) as Outlaw. It’s considered an exploit, albeit one you might have been using unintentionally.

I see, so for huntsman I don’t know how I proc 1 Find Weakness and lost my whole log. That’s quite disappointing but that seems unfair since I could randomly lose a pretty decent ranking log when an unintentional proc came up which is a in game bug that blizzard should consider to fix.