Unreal Engine Issues

Network Prediction crash when smoothing service instance data is reallocated out from under FNetworkPredictionStateView

Received a report from a licensee using Network Prediction Plugin and Mover.  There is a strong likelihood of a crash occurring when using NPP's smoothing option and spawning new NPP-simulating ins ...

Rendering sequence with livelink data has issues with smooth engine offset

[Link Removed] for reference Playing back a sequence shouldn't have buffered samples. We should have a single one, which was built from the sequence. We need to make sure when played back that it ...

SingleSampleShadowFromStationaryLights does not work in UE5 (when GPU-Scene is used)

The flag is not propagated in FPrimitiveSceneShaderData::FPrimitiveSceneShaderData and so is missing in GPU-Scene primitive data. Need to add: .UseSingleSampleShadowFromStationaryLights(Proxy->UseS ...

[AI] Navmesh tiles on different layers get removed while streaming out in WP Dynamic Modifiers Only navmesh

 Streaming out the navmesh and streaming the area back into the world before the GC runs causes the navmesh streamed back into the world to only have navmesh tiles on a layer with tiles that would b ...

Blurry RVTs after camera jump

When using Runtime Virtual Textures (RVT) on landscape in UE 5.5+, nearby tiles may remain blurry (low-resolution mips) after launching PIE or making large camera jumps (e.g. via bookmarks or viewpo ...

Naming a category for a function the same name as a function can cause the My Blueprints tree to display incorrectly (making the category heading look like a function)

Object using specific Corona Material Import by default with wrong UVs

Translucency area has stripe-style issue on TSR

The TSR History Rejection buffer develops a grid-like artifact over translucent, camera-facingplanes. This problem can be mitigated by increasing r.TSR.ShadingRejection.TileOverscan from 3 to 4 with ...

Root Motion Not Retained when Retargeting Animation Assets from UE4 to UE5

Occurs 5/5 Times RootMotion of an animation asset is not retained when retargeting Root Motion Animation asset from UE4 to UE5.  ...

Crash running construction script after compiling BP function library

Editor can assert when changing the signature of an editor authored Blueprint Library Function (FuncA) if that function is called from a Blueprint Library Function (FuncB) via an actor's constructio ...