Constant Crashes on OS X 10.10.1

UE - Platform - Apple - Dec 15, 2014

User (Omri) on Mac running OS X 10.10.1. on MacBook Pro (17-inch, Early 2009 Experiencing Crash. Cannot reproduce. Crash Reporter: N/A Callstack: MachineId:1E07B9CE2F4554A7C3F421A9DD97AFB5 EpicAc ...

Setting PHYSX_MEMORY_STATS to 1 prevents the Engine from being built successfully.

UE - Simulation - Physics - Mar 9, 2015

If #define PHYSX_MEMORY_STATS 0 is set to 1, the Engine will not build successfully. The build fails with the message: error C2338: FPhysXAllocationHeader size must be less than 16 bytes. ...

TimeSynth Counts Beats: 1,2,3,0

UE - Audio - Apr 2, 2020

TimeSynth Counts Beats: 1,2,3,0 Link to project files: https://forums.unrealengine.com/unreal-engine/announcements-and-releases/asset-sharing/1724414 ...

Memory leak when Lumen is disabled but r.MeshCardRepresentation=1

UE - Graphics Features - Lumen - Jul 29, 2024

When Lumen is disabled, but the cvar "r.MeshCardRepresentation" is set to 1, Lumen will continuously enqueue object removal from the Lumen Scene, without ever emptying the array of primitives to rem ...

Imported Maya animation seems to be 1-frame off in Unreal

OLD - Anim - Apr 5, 2016

A licensee reported this issue on UDN. They are seeing a discrepancy with animations imported from Maya. In this case, they appear to be off by 1-frame. We've talked about this on Slack and I know ...

Editor UI lightens when r.HDR.EnableHDROutput is set to 1

UE - Graphics Features - Nov 15, 2017

When console command r.HDR.EnableHDROutput = 1 is used, the entire engine UI becomes lighter or more washed out / desaturated, as shown in attached screen shots. Confirmed this bug is not present i ...

The number of seconds in Graph View of Session Frontend is significantly different from the actual time

Tools - Jun 11, 2018

The number of seconds in Graph View of session frontend is significantly different from execution time of "start file" and "stop file". Since the number of frames is correct, probably some problem ...

ES3.1 preview causes temporary freezing when selecting objects in the viewport on Mac

Tools - May 3, 2019

The editor will freeze for seconds at a time when selecting between objects in the viewport after using ES3.1 preview on a Mac. ...

Morph target for SK_BoxMorph_1 exceeds 1.0, causes the sphere shape to bend inward

Docs - Samples - Jul 10, 2017

In Content Examples, the morph targets assigned to SK_Box_Morph_1 exceed 1.0. While it's not "wrong" for morphs to go beyond that, it doesn't seem like it's a great demonstration in the asset. Goi ...

'Platform Stats' incorrectly display the number of Texture Calls for a material

UE - Rendering Architecture - Materials - Jul 29, 2024

When the DBuffer is disabled in the project settings, the Material Editor Stat page will still display the estimated texture lookups for the DBuffer. It appears that the code that adds these estimat ...