Project Crashes with Warning: LightPropagationVolume.dll is Missing From Your Computer

UE - Graphics Features - Mar 23, 2016

After disabling LightPropagationVolume in Plugins Editor, upon restart editor issues warning message 3 times and crashes, leaving project unable to be opened. REGRESSION: This does not occur in UE ...

Crash on stopping PIE after using DemoRec in PIE

UE - Networking - Jan 20, 2016

Crash on stopping PIE after using DemoRec in PIE. Possibly related to [Link Removed] which must be fixed, but happens upon stopping PIE. Reproduced in 4.11.0 Preview 3 binary and Main (//UE4/Dev-Ma ...

Calling functions that have an implicit WorldContextObject parameter in a Blueprint function library will give a compile error about a missing __WorldContext pin

UE - Gameplay - Blueprint - May 21, 2015

Calling functions that have an implicit WorldContextObject parameter (line trace, execute console command, etc) in a Blueprint function library will give a compile error about a missing __WorldConte ...

Can't PIE or Save: Editor gets into odd state when editing parameters.

Tools - Jul 20, 2016

I've seen this happen in other areas of the editor as well: Data Table fields (floats) for example. Manually typing in numbers to fields seems less prone to this error; using spinners to drag value ...

Get Random Point in Navigable Radius Returning Invalid Value

UE - AI - May 5, 2016

When using the Get Random Point in Navigable Radius node, every few points return an invalid value. Found in 4.11.2 binary. Reproduced in 4.12 Preview 2, 4.10.4 binary, and Main CL 2962354 ...

Copy/Pasting Behavior Tree Nodes Reverses Decorators

UE - AI - May 20, 2016

Copying and pasting behavior tree nodes reverses the order of any decorators on the node. Found in 4.11.2 binary. Reproduced in 4.12 Preview 4 binary. Regression? Yes. This does not occur in 4.10 ...

Setting Automatically checkout on Asset Modification in the editor does not check out files

Tools - Nov 20, 2015

When the checkbox for Automatically checkout on Asset Modification is set to true in the editor, updating files (blueprints, materials, etc) does not check them out automatically. REGRESSION Worki ...

Blueprint Doesn't Show Components Added at Runtime

Tools - Nov 2, 2015

When a custom component is added at runtime, it does not show up in the details panel when you select the blueprint that it has been added to. Found in 4.9.2 binary. Reproduced in 4.10 Preview 3 a ...

Memory Use Steadily Increases in Editor With No Tabs Open

Tools - Nov 24, 2015

When in the editor, the memory use steadily increases ~1mb/s and rises indefinitely. This occurs without having any tabs open, and without performing any actions in the editor. Found in 4.10 Binary ...

DataAssets with a field called "Name" can cause multiple Name columns to appear in the content browser

UE - Editor - Content Pipeline - Content Browser - Jul 18, 2017

A DataAsset with a FText property called "Name" will confuse the content browser, causing it to create a new column each time the folder containing the DataAsset is entered. This appears to be a cor ...