Hi,
Found issue when rigid body projectile hit some destructibles forming extended structure.
Take a look on the movie and debug print string:
Left wall is created without marked form extended structure and right wall destructibles have marked form extended structure.
But when you mark Form Extended structure on the left wall you can reproduce this issue too:
DestructibleMesh'/Game/StarterContent/Shapes/sm_en_hou_Wall_01_02_DM.sm_en_hou_Wall_01_02_DM'
Of course I created a sample project where You can reproduce this issue on your side.
Shot some projectiles will LMB and observe the issue.
Oh forgot to mention, non rigid body projectile reports good actor on projectile hit.
Regards
Pierdek