destructible mesh issue

Hi guys i am building a lot of game mechanics in a small area in order to get everything working before i start building my game world … And im currently working on a way to have a destructible mesh break away under foot so that the player can fall into a new underground world… i am having n issue getting this to work as the mesh only breaks if i touch the edge and walk away i can jump up and down on the mesh until i am blue in the face and it will not break. After messing with some of the physics properties i got it to work but instead of falling my character got catapulted to the other side of the map … Has anyone else tried to get something similar to work ?? any help is appreciated guys

What I would recommend doing is using a trigger volume to make the floor break through when the character walks into it. Problem solved!