Unreal Engine Issues

Mac freeze when completing basic interactions in Metal ES31 preview mode

DisplayThumbnail doesn't work with TArray

The DisplayThumbnail metadata UProperty specifier does not work on TArrays with the type of FSoftObjectPath. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7224811), 4.24 (CL - ...

Niagara Sample Static Mesh. Source Not Working

Static meshes are not rendered as particles when using the Static mesh module in Niagara and setting its source to a static mesh in the scene. Tested in 4.21.2 (CL -  4753647), 4.22 (CL - 7053647), ...

Crash when changing the AnimNotifyState property after moving the AnimNotifyState range added to AnimMotage

NotifyStateClass may be nullptr when AnimNotifyState and AnimNotify swap occur in NotifyTrack. Workaround: SAnimNotifyPanel.cpp void SAnimNotifyPanel::OnPropertyChanged(UObject* ChangedObject ...

Folders beginning with two periods are incorrectly collapsed by FPaths::CollapseRelativeDirectories

The Function FPaths::CollapseRelativeDirectories assumes that any instance of the characters "/.." are a relative path to the parent directory, and removes them along with the preceding directory. H ...

Editor Crashes when Isolating a Material Element on Skeletal Meshes with Ray Tracing Enabled

With ray tracing turned on, clicking on the isolate material option next to a material slot on a skeletal mesh with more than one material slot, causes the editor to crash. Found in 4.22 CL# 7053647 ...

UAbilitySystemComponent's CurrentMontageStop() function does not use OverrideBlendOutTime Float Parameter.

In the attached example, the third person mannequin character's BeginPlay() runs an Ability_Task which starts an animation montage. In the task it is specified that the blend out time (BlendOutTime ...

Compiling Child Blueprint and editing child component's class value, results in parent component's value being changed under certain compile conditions.

Compiling Child Blueprint and editing child component's class value, results in parent component's value being changed under certain compile conditions. "This is because they're now pointing to t ...

"Activation" and "Trigger" keywords are not allowed as a subcategory

Using Activation and Trigger as subcategories names does not work in the Details Panel. Tested in 4.21.2 (CL - 4753647), 4.22.3 (CL - 7053647), 4.23 (CL - 7208101), 4.24 (CL - 7216880) ...

Landscape No Longer Renders when Setting Max Desired Draw Distance Above 0

Landscapes no longer renders when setting max desired draw distance above 0. Found in 4.21 CL# 4753647, 4.22 CL# 7053647, 4.23 CL# 7208101. 4.24 CL# 7210422 ...