Replay System throws an Ensure during demoplay when calling it in a different Level

Networking - Replay - Jul 10, 2019

Replay System throws an Ensure during demoplay when calling it in a different Level. The error is thrown at Source\Runtime\Engine\Private\RepLayout.cpp]. It does not prevent the Replay from being pl ...

If use Remove Unused Bones from Skeleton, PoseAsset of the skeleton will be broken

Anim - Animation - Jul 10, 2019

If user execute "Remove Unused Bones from Skeleton" on Skeleton where PoseAsset exists, the index held in FPoseData :: TrackToBufferIndex in PoseAsset will not be corrected, and it will refer to the ...

GetPackageLengthForCooking can be much larger than the actual file path length

Tools - Jul 10, 2019

If the file path with the asset contains a project name, the cooking file pathlength is incorrectly increased. The following code in ContentBrowserUtils :: GetPackageLengthForCooking causes this is ...

Anim notify issue with root motion replication

Anim - Animation - Jul 9, 2019

https://udn.unrealengine.com/questions/510965/view.html ...

Staticmesh asset sometime mess material ID when reimporting fbx or get rebuild

Tools - Jul 9, 2019

We need to investigate more what happen during this reimport with the material ID. The asset can also be broken when the DDC get dirty and the asset is rebuild. ...

tvOS crash on startup with Shared Material Shader Code enabled

Platform - Mobile - Jul 9, 2019

Enabling Shared Material Shader Code will cause a crash on tvOS From user: "We originally enabled Share Material Shader Code long before trying a tvOS build, making this crash tricky to debug. W ...

Investigate removing reliable sequence synchronization from UActorChannel::SetChannelActor

Networking - Jul 8, 2019

UActorChannel::SetChannelActor contains old code to synchronize the channel sequence numbers for a connection if the channel index is reused. This seems unnecessary now that we intentionally update ...

Each changing collision response increases FPhysXTask count

Physics - Jul 8, 2019

calling SetCollisionResponseToChannel or something similar, FPhysXTask will ever increase . Finally, it causes serious frame rate drop. That count can be reset by calling RecreatePhysicsState. ...

DisplayThumbnail doesn't work with TArray

Tools - Jul 8, 2019

The DisplayThumbnail metadata UProperty specifier does not work on TArrays with the type of FSoftObjectPath. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7224811), 4.24 (CL - ...