Destructible mesh with projectile in movable actor

Hello i have movable ground wich have distructible mesh with bluprint on it:

When i move ground mesh start getting hit and mesh start fracture before projectle hit. I understand why but didn’t find solution, try play with collision projectile and destructible mesh but no results. What i should do with that damage taking from ground ? How tell mesh fracture only from projectile ?

DM settings:

DM blueprint collision settings