[CrashReport] Crash on Mac due to uncaught exception 'NSRangeException' - HIToolbox!DispatchEventToHandlers()

UE - Platform - Apple - Jun 22, 2017

This is a common and longstanding community crash on Mac. Users have not provided descriptions when they crash, so additional information is currently not available. A log file is attached. Call ...

[CrashReport] Access violation in UE4Editor_Engine!TOctree<TVolumeLightingSample<3>

UE - Graphics Features - Jun 14, 2017

This is a common crash in the 4.16 release. The callstack for the issue is essentially the same as [Link Removed], however that issue had confirmed repro steps and was verified fixed for 4.16.0. A ...

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

UE - Platform - Apple - 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

UE - Platform - Apple - 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 ...

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

UE - Foundation - 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 ...

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

UE - Simulation - 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 ...

Alt tabbing into the Blueprint Editor while a Microsoft IME keyboard is active causes the editor to freeze

Tools - May 15, 2017

If you change focus to the Blueprint Editor (Alt+tab) while a Microsoft IME keyboard is active, the editor will freeze for a short time. The duration of the freeze is dependent on the number of blue ...

Crash reimporting a skeletal mesh with less Material IDs than on first import

NOTE: Does not occur in 4.16, entered this to find a fix for licensee to integrate. Error message: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 633] Array index out o ...

Crash Occurs When Setting Child Actor Class in Child Blueprint

UE - Gameplay - Blueprint - May 4, 2017

A crash occurs when setting the Child Actor Class of an inherited child actor component. This is not a regression. It occurs in 4.14.3 CL# 3249277, 4.15.2 CL# 3416026, and 4.16 Preview 2 CL# 34155 ...

[CrashReport] Assertion failure in NameTypes.h after CookOnTheFly

UE - Foundation - Core - Apr 25, 2017

This is a top crash occurring for users in the 4.14 and 4.15 releases. Unfortunately no user-descriptions of the issue have been provided, so information is limited. Despite a different callstack, ...