Unreal Engine Issues

Long thin spinning objects take too long to stop spinning

See the SpinningObjectStability test map in the Physics Sandbox. [Link Removed] It's not clear if this is a bug or a side effect of some of our solver shortcuts (e.g., omission of the precession te ...

Cable Actor becoming stiff when bound to two dynamic objects

the cable actor does not dynamically deform when the cable actor's parent mesh moves. Instead, the cable actor becomes rigid between the meshes it's bound between. This bug does not occur in the fo ...

Crash Occurs When Attempting to Pass a Struct Containing an int64 into a Blueprint Function

Attempting to pass a struct containing a variable of a type that is not compatible with blueprints into a blueprint function causes the editor to crash upon PIE. Found in 4.10.2 binary. Reproduced ...

Packaged size of project is double its size when packaging for Shipping Windows (32 bit)

When you package a project in 4.6.1 for Windows (32 bit) shipping, the file size is around 160 MB. When you package a sample project in 4.7.2, the packaged size will be around 345 MB. [Link Remove ...

AllowCommandletRendering D3D12 device crash

Crashes when playing Slomo on NiagaraSystem with Solo and DesiredAge.

When Slomo 2 is used to speed up the process, TicksToProcess is greater than 1, which means that ManualTick is called several times during one loop.  When playback is completed by a ManualTick in t ...

Play Dynamic Force Feedback does not work on Android

When trying to trigger vibration through the Play Dynamic Force Feedback node, nothing happens on Android. I tested this on Windows as well with an Xbox Series X controller connected, and the vibrat ...

Linux Native Toolchain depends on libninfo5 which is not bundled

libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007fc27cf4d000) bschaefer@bschaefer-Precision-T7600:bin$ ldd ./clang linux-vdso.so.1 => (0x00007ffceefe3000) libpthread.so.0 => /lib/ ...

Sub Surface Shading Model has Strange Blotch Color Artifacts when Used with a Ambient Cubemap

Sub surface shading model has strange blotch color artifacts when used with ambient cubemap. Since the subsurface profile shading model can't be used with ambient cubemap I wanted to use the regular ...

Incorrect physics interaction on rotated meshes using Complex as Simple collision

Incorrect physics interaction on rotated meshes using Complex as Simple collision. *This is a regression Working in 4.13.2-3172292 Not working in 4.14.3-3249277* User Description: When we updat ...