Unreal Engine Issues

UV Flipping Mode Causes Stretching of Particles

If "UVFlipping Mode" under Rendering on the Required node of an emitter is set to anything other than "None," the particles can become stretched and distorted. As a workaround, I have discovered th ...

Mobile VR App Crash with Monoscopic Far Field and Multi-View enabled

Mobile VR (Oculus Go) App Crash with Monoscopic Far Field and Multi-View enabled Workaround: Do not use Monoscopic Far Field and Multi-View at the same time Also confirmed in 4.22 Main @ CL 45 ...

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

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. ...

Data Table Reimport - No popup to specify source file

Selecting Reimport on a DataTable created in editor no longer triggers selection popup. "The change in behavior seems to be related to changes to UReimportDataTableFactory::CanReimport() which now ...

VCAM 2.0 - No signal on iPad from Mac OSX

UDN case link with this ticket [Link Removed] ...

Overridden functions in Child Blueprints cannot be converted to/from pure functions

Overridden functions in Child Blueprints cannot be converted to/from pure functions. Reproduced in 4.8.1 and Main (//depot/UE4/Promotable-CL-2601051) ...

Content Examples: Example 1.5 is stiff in Cloth Map

Example 1.5 on Cloth Map seems very stiff in 4.16 compared to 4.15. Regression: Yes Works in 4.15 ...

Crash in GetScreenRect on OPPO and Vivo devices

GPU Particle Collision changes based on Normal Intensity on Colliding Surface

Increasing the intensity of a Normal Texture on a colliding surface will cause the collision of GPU particles to behave strangely, looks to be falling through floor, when you are using a Constant Ac ...

Crash in packaged game if Blueprint that contains an instanced subcomponent is nativized

Attempting to load a nativized blueprint whose parent contains an instanced subcomponent causes the editor to crash in a packaged build. Regression?: Yes This did not occur in 4.18 ...