[CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::Get() [weakobjectptr.cpp:81]

Tools - Landscape - Nov 2, 2017

This is a trending crash coming out of the 4.18 release. It may be a regression. Users have not provided any descriptions of their actions when the crash occurred. Source Context 66 if (!S ...

UWorld::RemoveFromWorld does not check Pointer Reference for null before use

Gameplay - Dec 12, 2017

The code in UWorld::RemoveFromWorld that removes Pawns that are about to be streamed out does not check to see if the pointer that it sets is null prior to using it. In cases where Pawns are rapidly ...

Sockets Duplicate When Mesh is Reimported

Tools - Dec 21, 2017

When a static mesh that already has sockets created in it's original third party program is reimported into the editor, it's sockets are duplicated. Going from 10 to 20 on reimport.  ...

Crash when Landscape Max LODLevel is set to 0

Tools - Landscape - Mar 16, 2018

Reproduced in 4.19.0 CL 3944462 and 4.20 Main Unable to reproduce in 4.18.3 CL 3832480. This is a regression. ...

ProjectWorldToScreen always returns True

Gameplay - Blueprint - Apr 4, 2018

ProjectWorldToScreen always returns true. User states: "This probably comes from that line of code : bResult = Player->PostProcessWorldToScreen(WorldPosition, ScreenPosition, bPlayerViewportRelati ...

If Mesh is Reimported When Clothing Data is Applied Clothing Data Can No Longer be Edited

Physics - Clothing - Apr 5, 2018

Clothing data can not be applied after the mesh that had clothing data already applied to it has been reimported Error message "Failed to bind clothing asset "nameofmesh"_0LOD1 is already mapped t ...

Unable to call several functions in UMovieSceneParameterSection due to them not being exposed outside of the module

Anim - Sequencer - Jun 14, 2018

The AddScalarParameterKey(), AddVectorParameterKey(), and AddColorParameterKey() functions in the UMovieSceneParameterSection class are not currently exposed to be called from outside of the module. ...

Nav Area class is reset after updating from 4.19.2 to 4.20 Preview 3

Gameplay - AI - Jun 21, 2018

When upgrading a 4.19.2 project to 4.20 Preview 3 the Nav Area Class is changed to None instead of the value it was before the upgrade. Upgrading from 4.18.3 to 4.19.2 works as expected. This was t ...

The target for the "Should be Loaded" variable appears to have change to "Level Streaming Kismet"

Gameplay - Blueprint - Jun 21, 2018

The target for the "Should be Loaded" variable appears to have change to "Level Streaming Kismet". This means that it no longer works with the "Get streaming level" node and can cause errors when us ...