Unreal Engine Issues

The CanLaunchURL() function does not do what it seems to imply that it does

The CanLaunchURL() function seems like it would check the provided URL to make sure it is valid. The comment for the function in GenericPlatformProcess.h appears to imply that this is what the funct ...

Blueprint EventDispatchers unable to be reordered

UI appears to support EventDispatcher reordering, however reordering does not occur. ...

Memory Leak when Debugging Blueprint

RAM usage continually increases when debugger is active https://answers.unrealengine.com/questions/784443/ue-4191-memory-leak-while-using-blueprint-debugger.html ...

Sequencer:The Spawned AnimBP variable is not changed during the second play

The Spawned AnimBP variable is not changed during the second play. When changing Spawned AnimBP variables from Sequencer Track, the first change works correct. Second time, It can not be changed co ...

Adding a call to the parent function when executing an inherited multicast event on a client results in the events being called on the client twice

A user has reported that adding a Parent call to an inherited multicast function causes the event to be called twice if it is executed on a client. Regression?: No This occurred in 4.20 Link to te ...

CachedLocalBounds is incorrectly updated

USkeletalMeshComponent::CalcBounds updates CachedLocalBounds by transforming the world FBoxSphereBounds, by the WorldToLocal transform, which is not sufficient to calculate the bounds in local space ...

Animation import with "Force Front X Axis" is broken until a re-import

Mobile HQ reflection option does not use the sky reflection cubemap.

See attached image., the selected sphere is using HQ reflections. HQ reflection code does not look for sky captures. Note that the sky capture does not require the parallax correction code. ...

Particles can not be displayed once they disappear in ParticleLOD

I have attached a project to reproduce. [Link Removed] The problem is that if there are multiple emitters It seems to reproduce when all Emitter is Disable. It works well if there is one Enable. [ ...

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float"

When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float". Found in 4.22.3 CL#7053642 Reproduced in 4.23.0 CL#8386587, 4.24.0 Main CL#8671808 ...