Data loss caused by C++ Child Actor Component when compiling Child BP

UE - Gameplay - Blueprint - Dec 22, 2016

Having Child Actor Components that are set in code can cause data loss upon compiling the blueprint. In this particular scenario, there are two custom Actor classes involved, MainActor and SubActo ...

Inconsistance Line Trace behavior

UE - Simulation - Physics - Dec 22, 2016

Line trace component appears to return a hit result even when the trace should not have had anything to hit. Attached project shows line trace start & end points. Even when the trace doesn't overla ...

Crash occurs when importing attached FBX with default import settings

UE - Editor - Content Pipeline - Import and Export - Dec 22, 2016

While verifying a bug for 4.15 UE-39952 , I tried to repro in 4.14.2 and the editor crashed while attempting to import the attached FBX In 4.15, the Editor does NOT crash a window pops up stating t ...

UFE Deploying and launching a packaged build on Linux fails due to invalid directory

UE - Platform - Linux - Dec 22, 2016

Deploying and launching a packaged project, using a Custom Launch Profile that is set to copy the project to a repository, fails due to a missing /. I do not see this issue when running a Quick Lau ...

Using Set World Origin Location will cause the player pawn to stutter

UE - World Creation - Worldbuilding Tools - World Composition - Dec 22, 2016

Using Set World Origin Location will cause the player pawn to stutter. The faster the player is moving, the more prevalent the stuttering becomes. User Description: I have encountered a problem wh ...

Child Actors should seamlessly travel with their Parents

UE - Gameplay - Components - Dec 22, 2016

When an Actor is identified to seamlessly travel, its child actors should also seamlessly travel with it (or maybe it should be an optional flag), rather than destroying and recreating on the other ...

Some noticeable vehicle stuttering and wheel jitter when on a vertically moving platform

UE - Simulation - Physics - Dec 22, 2016

When driving across a vertically moving platform, the user can noticed that the vehicle will stutter and slow down once it starts moving, and as they drive across, the wheels will jitter as well. ...

Compile failure adding BTTask_RunBehavior C++ class to project

UE - AI - Dec 22, 2016

Error message in log is:CompilerResultsLog:Error: Error MyBTTask_RunBehavior.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl IGameplayTaskOwnerInterface::OnGameplay ...

Stat Sounds behavior inconsistent after being brought up repeatedly

UE - Audio - Dec 22, 2016

If the user runs the "stat sounds" command repeatedly over the course of multiple PIE sessions, there will be inconsistent behavior with when it appears on the screen. In the scenario given in the ...

Steering feels sluggish in VehicleGame

UE - Simulation - Physics - Dec 22, 2016

REGRESSION Yes, does not occur in 4.14.2. Steering in Vehicle Game feels very sluggish. Turning is slow, and the buggy loses a lot of acceleration. ...