Setting Fixed Frame Rate Prevents Particle Collision In PIE, Standalone, and Packaged Game

UE - Graphics Features - Oct 12, 2016

If you set the project to use a fixed frame rate, particle collision no longer works. ...

In the Anim Sequence Editor set a Notify's MontageTickType to be fixed to BranchingPoint if that Notify is a Native Branching Point

UE - Anim - Gameplay - Jun 30, 2023

To avoid confusing users when working with a Native Branching Point Notify set its MontageTickType to be fixed to BranchingPoint.  ...

Blueprints with accent characters fail to open when converted from 4.19 to 4.20

Tools - Oct 2, 2018

Any Blueprint with accents in the name, coming from 4.19 won't open in 4.20. Double clicking the asset, trying to right click asset, results in no actions. When loading the project this message app ...

"Fix root motion initial rotation handling" commit breaks root motion completely

OLD - Anim - Dec 18, 2014

Enabling and processing root motion causes animation to rotate the wrong direction. Roll instead of Yaw. Pitch instead of roll etc. This error does not occur in UE 4.6. ...

Fix the skeletal mesh merge tool material assignment, change the API to avoid confusion

OLD - Anim - Jul 25, 2018

UDN user ask us to change the API for the material to remove confusion with the material ID. Also apparently there is an issue with the skeletal mesh merge tool, the user did not give any repro ste ...

Crash on garbage collection - Encountered 20 object(s) breaking GC Clusters assumptions.

UE - Foundation - Core - Aug 15, 2018

Garbage collection crash during opening cinematic. Note after crashing and relaunching the game the saved file appears as 8% complete instead of 0%. Note this crash is also occurring with //UE4/D ...

Fix PrimitiveComponent overlap indirection

UE - Simulation - Physics - Sep 27, 2016

When doing overlap tests in PrimitiveComponent, UWorld->ComponentOverlapMulti is used. The callstack for that ends up looking like this (callstack is inverted, highest level on top): UWorld::Compo ...

Fix AGameModeBase::GetGameSessionClass

UE - Gameplay - Dec 5, 2016

AGameModeBase::GetGameSessionClass wasn't properly returning the set GameSessionClass. ...