The sticky spot OptiTron is referring to may be a "glitch" in some games. It seems to work for some but not others. Either way, it will likely be corrected in any updates to the game.

The game provides numerous ways to limit the interference the Red & Yellow masks inflict on your tribe. One of the best ways is to simply keep an active eye on your tribe. Especially scan the path a kid is going to take before letting him/her pick up a collectible that you need.