This may have been reported before. If so, I apologize. I don't know whether this is a glitch, or just oversight. But I've been seeing many players lately using a trick in map 52 that allows them to unfairly gain firsts by getting cheese without help from either shaman, due to a combination of the mice spawn point and a certain skill that one or both shamans have. I don't want to explain how it's done here, in case people who don't know how may start abusing it. But for a long while now this has been going on and I haven't seen anyone report it.

Its not a bug. its from both shams have enlargened cheese, the mice can reach the cheese by jumping off the platform and then walljumping back up to the hole. anyone who has seen it knows how to do it. but honestly theres no other place to put the cheese, so you will have to deal with the "unfair firsts"

Increased cheese size is only half of the problem. If you look closely, mice spawn a pretty decent height above the ground. Being able to jump in midair with the extra height the spawn point gives them is what allows them to reach the holes without shaman help.

Either they need to move the holes up higher, or just simply have the mice spawn on the ground at the start of the map, rather than hovering in the air.