Does the issue occur in the editor or during gameplay? If it occurs during gameplay, please specify which movement
Gameplay, free move and grid, first person or 3rd person
Briefly describe the issue you're experiencing:
Projectiles from turrets are not colliding with objects/tiles. It does collide with the player however
Are there any errors in the in-game debug console or external console window?
No
Provide the steps necessary to reproduce the issue:
Create a turret, create an item/projectile voxel with collision (it doesnt seem to matter if its passable or not), then observe it passing through where it shouldn't.

The issue occurs in barebones as well. BB Project below