Unreal Engine Issues

Setting the Collision Response of an instanced actor through the Details panel overrides the Construction Script setting

The collision response of an actor can be changed through the Details panel of the instanced actor and this overrides the collision response settings that were set through the Construction Script. ...

Damping properties lost during change to the collision configuration.

See UDN (https://udn.unrealengine.com/questions/573845/setcollisionenabled-on-skeletal-mesh-ragdoll-requi.html) ...

Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

Ragdoll stops mid-air when activated during root animation

Crash if the setting of PhysicalAnimationComponent is changed in the same frame as teleport processing

Crash when ApplyPhysicalAnimationProfileBelow node and UPhysicalAnimationComponent :: UpdateTargetActors by UPhysicalAnimationComponent :: OnTeleport run in the same frame. Because RuntimeInstanceDa ...

AddForce behaves inconsistently between PIE and Standalone Game / Build

This example consists of a simple BP Actor, containing a Collision Sphere and Static Mesh (Sphere). The BP has Simulate Physics Ticked on, the Mass in KG is 1 and collision preset is set to Block Al ...

UProceduralMeshComponent::UpdateMeshSection does not call UProceduralMeshComponent::UpdateCollision

Updating a procedural mesh results in an incomplete collision update. Collision bounds appear to get updated properly, but collision data is not updated, despite a navigation rebuild being triggered ...

Spline mesh component doesn't draw complex collision geometry correctly

Lost triangles when creating convex collisions

Uncrouching a character on a physics object causes the character to penetrate the object only when physics substepping is enabled

This does not repro when physics substepping is disabled. The sequence of events in the character uncrouch code (UCharacterMovementComponent::UnCrouch) causes the capsule to move up then increase i ...