Unreal Engine Issues

Simulate motion vectors can fail on camera cuts

r.MotionVectorSimulation 1 should simulate motion vectors when cutting cameras, but this appears to be broken on some loops. ...

AlwaysTickPose is prone to double firing notifies in a dedicated server setup.

See UDN for more info: https://udn.unrealengine.com/s/question/0D5QP00000MfU8l0AF/uanimnotifynotify-is-called-twice-for-the-same-notify-on-server-in-a-multiplayer-game ...

[PCG] Delayed PCG Component Unregister causing stale pointer crash

Missing display units initialization from project settings

From customer: Hi there, I stumbled upon a bug where the display units as set in the Project Settings under the Editor Appearance category for properties were not getting displayed properly and was ...

RVT Tiles Update Slowly When Enabling Nanite Tessellation On Landscapes

RuleProcessor is not listed in the Window menu in 5.4

Since CL-28416011, Sections in Window menu are broken and the RuleProcessor can not be registered in the menu. (See attached imanges) Following workaround restores the sections and fixes the issue. ...

Camera Cuts lock doesn't work when simulating

Lock Viewport to Camera Cuts of CameraCutTrack stopped working from version 5.4 during PIE's simulation. This is a regression from 5.3 behavior where the lock remains when simulating. Locking to ind ...

OFPA: Cooking fails with nested actors

Sync Marker validation check fails on Follower anim sequence with an active Mirror Table when Leader anim sequence is playing backwards

Validation fail ...

Draw Invalidating Bounds debug view mode for Virtual Shadow Maps is gone in 5.4

The CVar "r.Shadow.Virtual.Cache.DrawInvalidatingBounds" referenced in the official 5.4 documentation for virtual shadow maps, no longer shows any bounds as the underlying code seem to be removed in ...