Sprite collision is inaccurate

UE - Gameplay - Paper2D - Oct 31, 2014

Sprite collisions do not accurately reflect the collision for the sprite. While the collisions are always the same between two of these, the collisions do not correspond to the shape of the collisio ...

Attached Project Crashes When Attempting to Open Struct

UE - Gameplay - Blueprint - Apr 4, 2016

The attached project crashes whenever one of the structs is being opened. This does not occur in 4.10.4, this is a regression. Found in 4.11 Binary, reproduced in Main CL 2930737. User informati ...

[CrashReport] UE4Editor_CoreUObject!StaticConstructObject_Internal() [uobjectglobals.cpp:3144]

UE - Gameplay - Jan 24, 2018

No user comments in crash group ...

[CrashReport] SMediaPlayerEditorOutput::UpdateSoundWave(), SetAudioSink()

Media Framework - Aug 9, 2016

This JIRA is being entered as a result of it being one of the top crashes in 4.13 Preview 1. Error message: Access violation - code c0000005 (first/second chance not available) Source Context: 67 ...

Using TInlineAllocator with a large number in TArray that is in an AActor class will cause child Blueprint class to call an assert while parent class will not

UE - Foundation - Core - Jul 22, 2016

If a TArray has a TInlineAllocator with a large number and the class is used with a child Blueprint, the editor will throw an assert. If the base C++ Class is used instead of the Blueprint, the asse ...

Opening / Compiling class with ChildActorComponent causes the ChildActor package to be marked dirty.

UE - Gameplay - Components - Mar 24, 2017

Looks like this is a problem where the Actor is Duplicated due to constructions scripts running. Later, when the duplicate is destroyed all of its components will call RemoveOwnedComponent as they'r ...

Delta struct serialized fast arrays replicating new elements with no changelist

UE - Networking - Jun 14, 2021

There is a scenario where delta struct serialized fast arrays can replicate changes that introduce additional elements to the array, but without changelists containing the new data. This needs furt ...

Creating an AnimStreamable asset immediately crashes the editor

UE - Anim - Runtime - Feb 6, 2024

When creating an anim streamable we immediately fail a check in the compression code in FCompressibleAnimData::FetchData: checkf(AnimSequence, TEXT("Invalid animation sequence while trying to fetc ...

[CrashReport] Assertion failed: !Export.ClassIndex.IsNull() | UPackage::Save()

UE - Foundation - Core - Cooker - Sep 20, 2017

This is a somewhat common crash coming out of the 4.17 release. User Descriptionsclicked Launch->Firefox. This is the same project with in-game video-screens which has been crashing on Launch for W ...