Unreal Engine Issues

BP using nested child actor components in streaming level causes ensure condition failed

This never happens on ue5.0.0 The problem appears to be caused by a deleted PhysicsProxy being registered with Solver. Since the solver accesses the deleted PhysicsProxy, it may crash. Checking a ...

Lighting Build fails with World Settings Error

Lighting Builds seemingly successfully but produces a Map Check Error for World Settings. There are several things that can be done to "eliminate the issue" and I have separated them into different ...

Inherited UserWidgets can't create animations that bind to widgets on their parent's WidgetTree

Animating an inherited widget from a child UserWidget class appears to work, but the bindings don't resolve properly and the animation is null at runtime. This workflow should either be supported, o ...

Integrity of AnimSyncMarkers compromised while playing AnimMontage with root motion in server side

Reference UDN as it explains well the cause of the issue. ...

Dynamic material is not discarded when other sub-sequences are played while the master sequence is playing

Landscape flatten target value and terrace interval's sliders don't take the landscape scale into account

This problem was originally reported in this UDN : https://udn.unrealengine.com/s/question/0D5QP000007yVue0AE/flatten-brush-limit-with-landscape-scale-z?fromCase=1 ...

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor

Creating a new Physics Asset will override the behavior of the previous Physics Asset inside the Phat Editor. This seems to be linked to which physics asset is currently assigned to the skeletal me ...

ReplicatedUsing stops getting called after setting a value to nullptr.

Eventually, the ReplicateUsing function called out for a UPROPERTY is no longer being called. After investigation, it appears that the data is making it from the Server to the Client, but that the d ...

UIpNetDriver::ProcesRemoteFunction warnings appear for ShooterGame clients when switching weapons

The following warnings appear in the output log for ShooterGame clients when switching weapons. [2015.11.05-19.41.11:550][253]LogNet:Warning: UIpNetDriver::ProcesRemoteFunction: No owning connectio ...

Inclusive Nativized Blueprints slower than Non Nativized Blueprints in packaged project

When nativizing blueprints the packaged build of the project runs slower than a non-nativized version of the packaged project. Found in 4.22 CL#7053642 Reproduced in 4.21 CL#4753647, 4.24Main CL#7 ...