The new custom editor build steps don't properly advance when we complete an async build step, looks like it was untested. ...
A user decided to test the experimental Unit Test Framework plugin that was included with 4.11. The user discovered that the Editor will crash whenever opening a project that has this plugin enabled ...
Crash when using "Convert to Seeded" on a Particle System Cascade module This is a Regression as it does not occur in 4.10 Error message: Assertion failed: *Offset < (uint32)InstancePayloadSize [ ...
\Engine\Source\Runtime\Engine\Private\DrawDebugHelpers.cpp DrawDebugSphere and DrawDebugAltCone both try to dereference variable 'LineBatcher' without checking for null, as the other DrawDebug func ...
Screen/Playable window flickers when playing in Standalone on Windows 10. A few users are reporting this issue which is exclusive to Windows 10 and Standalone mode. There is another issue the could ...
Toggling game view does not hide icons/assets in viewports outside of perspective view that would not be visible in game mode. Regression (No) issue (does) occur in 4.10.4 ...
Draw Line in HUD does not respect alpha < 1.0, instead drawing completely opaque in all circumstances. Regression (No) issue (does) occur in 4.10.4 ...
Adjusting default light settings in the Color Picker palette for atmospheric fog causes the engine to crash in UE 4.12 Preview Regression: This does not occur in UE4.11 ...
This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Assertion failed: Pair != nullptr [Link Removed] [Line: 520] Source Context:4 ...
Adding a Material Parameter collection to a material, setting its value, then saving the material will cause a crash. This was only able to be reproduced on Mac and did not affect the Windows versio ...