Unreal Engine Issues

Particle systems have frame rate dependent simulations when Min Time Between Ticks is set, and ticking is managed

Managed ticking when combined with Min Time Between Ticks will cause particle velocity to vary depending on frame rate. ...

Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

Sequencer's Spawnable actor rename can not be synchronized between sequencer and outliner

This behavior seems to occur only for spawnable. The licensee wants the renaming behavior to be consistent. ...

In the DragForce module drag amounts greater than one can accelerate the particle instead of slowing it down.

Drag force allows for values greater than 1, which can cause the drag force to exceed the initial velocity, which will continue to compound until a NaN is reached or the particle's lifetime is up. ...

Fail to save level with a Blueprint component containing User Data

Sequencer sets max FPS when a Sequence is played after being paused if it's locked to the display rate

When playing a sequence the engine's max FPS will be saved in a temp value. If the sequence is paused and played that temporary value will be overwritten with the sequence's value. When restoring th ...

Using Interpolative Animation Data into 'Make Dynamic Additive' gives warning "Trying to play a non-additive animation into a pose that is expected to be additive in anim instance"

Feeding Interpolative non-additive Data into Make Dynamic Additive gives a Warning "Trying to play a non-additive animation  into a pose that is expected to be additive in anim instance" AnimBluepr ...

Instances Created From Merge Actor Have Corrupt Lightmaps

Instances Created From Merge Actor Have Corrupt Lightmaps. Working as intended in 4.20 CL# 4369336 and 4.21 CL# 4753647 Found in 4.22 CL# 6574378 and 4.23 CL# 6842436 This is a regression. ...

Crash when loading iCloud/CloudKit SaveGame on iOS

"...it seems the crash occurs because it is trying to load an empty (0 byte) save file. Stepping through the code in Engine/Plugins/Online/IOS/OnlineSubsystemIOS/Source/Private/OnlineUserCloudInterf ...

Enabling Omni Directional Stereo Capture Breaks Draw Material to Render Target Functionality

Enabling ODS (omni directional stereo capture) in project breaks Draw Material to Render Target functionality. Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6574378, 4.23 CL# 6836133 ...