Hey there @7bec2349478b4c109fcd16245e35995e! Welcome to the community!
If you see this error on project launch:
Head over to your project’s folder-> config → DefaultEngine.ini
Slide down to your collision profiles and search for WaterBodyCollision. You likely won’t find it, we can add it here directly.
+Profiles=(Name="WaterBodyCollision",CollisionEnabled=QueryOnly,bCanModify=False,ObjectTypeName="",CustomResponses=((Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="Visibility",Response=ECR_Ignore),(Channel="Camera",Response=ECR_Ignore),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)),HelpMessage="Default Water Collision Profile (Created by Water Plugin)")
Copy and paste that under the collision profile list, then launch the project and check for it in the water as well as in the project settings.
However, if that isn’t the issue, try using the Buoyancy example in the engine folders:
Does that work?
If not, here’s a couple threads with various fixes, however the collision profile is the most common.
Various issues, some fixed by collision profile but others with various other fixes:
This thread shows similar issues, but fixed by incredibly high buoyancy values: