Level blueprint is being executed twice at start of PIE

Gameplay - Blueprint - Aug 15, 2018

Level blueprint is being executed twice at start of PIE So far I have only seen this behavior with the Print String node when wired to Event Begin Play or Event Tick.  I have been unable to reprod ...

Phat Mirroring does not work correctly

Physics - Apr 25, 2019

There are various issues with mirroring in phat. Some issues are:Incorrect transforms(translation rotation and scaling) for both constraints and bodiesModifying un-selected constraints' angular lim ...

Changing ISM/HISM collision response at runtime does not update the collision properly.

Tools - World Composition - May 8, 2019

Changing ISM/HISM collision response at runtime does not update the collision properly.  Found in 4.20 CL# 4369336, 4.21 CL# 4753647, 4.22 CL# 6063286, 4.23 CL#6368684 ...

Mesh and Preview Character BP Stuck in "In Air" Animation

Gameplay - Player Movement - May 13, 2019

Checking the Run Physics with No Controller box in an animation Blueprint causes the Mannequin to change over to the "In Air" animation state. This will only occur after making the change then compi ...

Failed to find stub IPA when uproject name is changed from default

Platform - Mobile - Nov 1, 2018

Failed to find stub IPA when packaging for iOS. This also happens with File > Package > iOS.IPP ERROR: Failed to find stub IPA 'D:\FaceARSample421\Binaries\IOS\FaceARSample421.stub' Regression: Yes ...

Error during packaging if nativizing a blueprint that contains a TMap with a UserDefinedEnum as a key

Gameplay - Blueprint - Jun 17, 2019

Certain Map container calls (e.g. Find, Add) will fail to compile at packaging time if a Blueprint class containing a Map variable with a user-defined enumeration as the key type is nativized. This ...

[CrashReport] UE4Editor_CoreUObject!FMemoryWriter::Serialize() [memorywriter.h:42]

Core - Jul 24, 2017

This is a common cook crash affecting users in 4.16. It is possibly the same issue as described in UE-22912 for past engine versions. Source Context 33 virtual void Serialize(void* Data, ...

[CrashReport] UE4Editor_HotReload!`FHotReloadClassReinstancer::UpdateDefaultProperties'::`2'::FPropertyValueMemoryWriter::operator<<() [hotreloadclassreinstancer.cpp:372]

Core - Hot Reload - Sep 14, 2017

This is a common crash that has occurred for users since at least 4.16. User DescriptionsUsing the PIE i compiled some c++ then quit the PIE before the end of the compilation. Source Context 35 ...

DataTable Vertical offset when using Windows scaling above 100%

Tools - Jun 22, 2018

If the windows scaling is set above 100% the rows in a data table will become misaligned as more members are added to the data table. Regression: Yes Did not occur in 4.17 - 3658906 Does occur in ...

AddLocalTransform node does not match scale behavior described in the node's documentation

Gameplay - Blueprint - Jun 29, 2018

The comment for the AddLocalTransform node states "Change in transform of the component in its local reference frame. Scale is unchanged." However, when the node is used, the existing scale of the o ...