1. It's called a Trial.
2. It's not a bug, it's a feature. Weather counts for 5 points, because it's harder to find. Get both weather AND day correct, and you get 6 points.
I assume you are doing Trial 296 (50 points on crab under any type of weather).
I wonder how long it'll take for you to realise dualwielding trial axes gives you twice the stats PUP can get on H2H ;D (That's not a bug either. Devs just don't like murderclowns getting too powerfull.)

