Animation Blueprint with Shared Transition "marked" dirty

OLD - Anim - May 14, 2019

Animation Blueprints which contain a shared transition used to transition between two animation states will be marked as "dirty" every time the blueprint is compiled and re-opened. ...

Datasmith CAD importer regression for Inventor files

UE - Editor - Content Pipeline - Datasmith - Importer - May 14, 2019

Fails with 4.22 but works fine with 4.21 ...

Flickering / Color Shift in Right eye with Cascade Particle + Instanced Stereo

UE - Niagara - May 13, 2019

Flickering or shifted color will be seen in the Right Eye. User reports that moving the nodes from the material function to the base graph resolves the issue. Confirmed in 4.23 MAIN branch @ CL 6 ...

Re-opening a Level with Datasmith Animation loses hierarchy

UE - Editor - Content Pipeline - Datasmith - Importer - May 7, 2019

It appears to be an issue with persistence and the sequencer. If the level is saved and reloaded without opening the sequencer all hierarchy is fineif you open the sequencer, then save the level, ...

When editing a color curve at the emitter level color is not updated correctly at system level

UE - Niagara - May 6, 2019

Editing color curves at the emitter level will not propagate to the system level when saving and applying. The curve will look correct int the system stack, but the particle colors will not match. ...

Soft Object Pointers may not fire Rep Notifies

UE - Networking - May 3, 2019

User reported that Soft Object Pointers may not fire RepNotifies properly. This is likely also the case with Weak Object Pointers (and other similar wrappers). The main problem is that these all ge ...

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor

UE - Graphics Features - Apr 22, 2019

Changing the Curve Asset in a Material Instance That Uses a Material Layer Crashes the Editor. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 5660361, 4.23 CL# 5974510 ...

Attempting to Rename Multiple Sockets Crashes the Editor

OLD - Anim - Apr 17, 2019

Having multiple sockets selected results in a crash when attempting to change the names of them all at once. The box to change their names appears to be grayed out but you can still click into it. U ...

Zero Length Raycasts/Sweeps not returning hits

UE - Simulation - Physics - Apr 11, 2019

Sweeps/Raycasts do not return hits for zero length queries. This is a regression from 4.21, where zero length Sweeps/Raycasts correctly returned hits. ...

Crash when using ConstructorHelpers on Niagara assets

UE - Niagara - Apr 10, 2019

When using the ConstructorHelpers templated function, FObjectFinder, with Niagara assets, the editor crashes. Tested in 4.21.2 (CL - 4753647), 4.22 (CL  - 5660361),  4.23 (CL - 5806860) ...