[CrashReport] Assertion failed: Canary == ShaderMagic_Initialized

Rendering - Jun 13, 2017

This is a common crash among the community since at least the 4.14 release. Additional information is not currently available. This is spread among numerous different CrashGroups between releases w ...

[CrashReport] Mac crash in UE4Editor-Core.dylib!FApplePlatformString::TCHARToCFString()

Platform - Mac - Jun 8, 2017

This is a common crash on Mac that has been occurring since at least the 4.14 release. Based on the one user description this may be related to the creation of structs. Additional information is n ...

[CrashReport] Crash on Mac related to editor close

Platform - Mac - Jun 6, 2017

This is a long-standing Mac crash that occurs with low frequency, but has affected more than 500 users since it started (possibly in the 4.11 release) It has recently been experienced internally by ...

iOS Shipping Build using std::thread crashes on launch

Platform - Mobile - Jun 2, 2017

A user is reporting that using the following code in a GameMode class causes shipping iOS packages to crash on launch:void ANOGSSDKGameModeBase::StartPlay() { std::thread([](){ std::clog << "THRE ...

FVector::Normalize does not set Vector to (0,0,0) upon failure, as described

Core - May 24, 2017

The FVector::Normalize function states in its comment that if given a vector that is too small to be normalized, it will set it to 0,0,0 and return false. The function only returns false and does no ...

MakeSureMapNameIsValid can return other assets if the name matches an Engine Content asset

Core - May 23, 2017

MakeSureMapNameIsValid will take in a FString, look for an asset matching that FString and edit it to match the asset path of the asset found. This issue is caused by the function not limiting its s ...

DetourCrowdAIController Using Incorrect Nav Agent

Gameplay - AI - May 22, 2017

Pawns using a DetourCrowdAIController do not appear to be using the correct Nav Agent when attempting to move. Setting the AI Controller class to a normal AI Controller allows it to complete the s ...

Rotation Not Always Replicated When bUseControllerRotationYaw is Set to False

Networking - May 19, 2017

Rotation does not always appear to be replicating when bUseControllerRotationYaw is set to false on the Character's class. This seems to occur 4/5 times. There are the occasional times where telep ...

Variable is not Replicated if the Value is Set to the Original Default Value

Networking - May 19, 2017

Variables are not being replicated when they are set on the server to be the same value as the default value of the property. For example, if a float is created and defaulted to 20, and then set to ...

Soft Contraint's Stiffness and Damping settings don't affect anything

Physics - May 19, 2017

The settings for "Stiffness" and "Damping" in the Soft Constraint setting for Physics Constraints doesn't seem to have an effect on anything. Regression?: No This also occurred in 4.14 ...