Summary
Any moving physics-enabled creative_prop (FortPhysics component) causes ALL vehicles on the map to shake/lag while it’s moving
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Devices
Steps to Reproduce
Summary:
When a creative_prop with its FortPhysics component’s “Simulate Physics” enabled is moving (thrown, pushed, any physics-driven movement), every vehicle currently on the map - not just ones near the prop, any vehicle - starts shaking/lagging in one direction (stuck in a direction, jittery, hard/impossible to control). This continues for as long as the prop keeps moving, and stops as soon as the prop stops moving. Disabling FortPhysics’s Simulate Physics on the prop (so it never moves via real physics) removes the issue entirely.
Repro:
- Place/spawn a creative_prop (Building Prop Blueprint) with FortPhysics Simulate Physics enabled.
- Make it move via real physics (ApplyLinearImpulse / SetLinearVelocity while dynamic).
- While it’s moving, any vehicle on the map shakes and drifts/lags in one direction, effectively uncontrollable.
- Once the prop stops moving (or is disposed), affected vehicles return to normal immediately.
Expected Result
Vehicle need to move correctly
Observed Result
any vehicle on the map shakes and drifts/lags in one direction, effectively uncontrollable.
Platform(s)
Windows, Editor UEFN, creative test plateform