Crash in FMacApplication::FindScreenByCocoaPosition when using the mouse in the ILIAD plugin.

UE - Platform - Mac - Aug 18, 2021

I think this could occur anytime but is probably very rare. However using this plugin from the reported UDN makes it much easier to repro as they are calling FMacApplication::ConvertCocoaPositionTo ...

Enum to string conversion has different results in PIE vs Cooked builds

UE - Gameplay - Blueprint Runtime - Aug 17, 2021

This is because the metadata is editor only and will be stripped in a cooked build. We should make the behavior of the to string function consistent between PIE and a cooked build. ...

Plugin Config filenames need to be different for Engine vs Game plugins

UE - Foundation - Core - Aug 16, 2021

Right now, plugins installed to the game directory will only load plugin-specific config files with the path /Project/Plugins/PluginPath/Config/*Default*PluginName.ini. However, engine plugins will ...

Renaming a SkinnedMeshComponent onto a different owning actor will cause issues with FAnimUpdateRateManager

UE - Anim - Runtime - Aug 12, 2021

As mentioned in the UDN - the user tried to rename an SMC to a different actor, which leaves the URO manager left with an incorrect data as it is not aware of the move. User proposed overriding Post ...

Niagara Crash : ExportParticleDataToBlueprint module causes buffer overrun

UE - Rendering - Niagara - Aug 10, 2021

This buffer overrun is probably caused by the ExportParticleDataToBlueprint module does not respecting the GPUAllocation Fixed Size setting in the module. In fact, out-of-range export data is not c ...

Copying and pasting event tracks will break endpoint bindings

UE - Anim - Sequencer - Aug 6, 2021

See linked UDN for more info. There appears to be an issue with mismatching parents when copying causing this to fail. ...

Pasting a component binding onto a Spawnable will not set up parenting correctly

UE - Anim - Sequencer - Aug 6, 2021

It appears that for spawnable bindings, when adding a child binding through a copy/paste it is not added to the child bindings array on the spawnable, so when GetChildPossessables is called, there a ...

DefaultEditor.ini dirtied when UpdateSingleSectionOfConfigFile is called for an object containing an array property

UE - Foundation - Core - Aug 5, 2021

Closing an AdvancedPreviewScene results in a call to UAssetViewerSettings::Save to save the preview scene settings, regardless of whether or not anything has been modified. This in turn calls Update ...

TextRenderComponents exist on editor dedicated server instances

UE - Networking - Aug 3, 2021

It seems as though TextRenderComponents are not intended to exist on dedicated servers. In BaseEngine.ini, they are explicitly excluded: "+ClassesExcludedOnDedicatedServer=TextRenderComponent" This ...

Crash when adding a streaming level to the world through Python

UE - LD & Art - World Building - World Composition - Aug 3, 2021

When using the Python plugin to add an existing level as a streaming level, the editor crashes. It seems that this happens regardless of what level is added or what the contents of that level are. A ...