Lego 3841 minotaurus baseplate loose

Hello everyone, recently bought a used lego 3841 minotaurus board game. I assembled it today and found the microfigures and minotaur to be loose on the green 32x32 baseplate. The bricks on the baseplate have okay clutch power but these figures are quite loose. Why is this? Does the baseplate need ti be changed or something else? I would be happy if its just the baseplate i hope the microfigures havent worn out. Has anyone had simillar problems with baseplates maybe? Also there is this brown...