Unreal Engine Issues

Invalid API documentation file

The API.chm file is invalid. Additionally the website API docs are out of date. This is tied to a larger issue with the APIDocTool. ...

ARCore - "Get Supported AR Video Formats" returns empty on Android

Get Supported AR Video Formats node only functions on iOS. (ARCore Library has similar 'Get ARCore Camera Config' node currently) Tested with iPad A1701 and Note 9 ...

Inifinite loop in tick task manager with tick when paused and interval

When processing tick when paused tick interval tick functions an infinite loop can occur. ...

ParticlePosition doesn't use Previous values

FHLSLMaterialTranslator::ParticlePosition does not return Previous information when request which can result in bad motion vector calculation. ...

Timer does not update in Vehicle Game

When trying to test Vehicle game, the counter did not increase as time elapsed. This prevents being able to test if the lap function is working. Tested in 4.13.2 CL 3145013 and it was working. Thi ...

Utility functions in UEdGraph_ReferenceViewer are no longer exposed

A number of utility functions are provided in UEdGraph_ReferenceViewer for building menu extenders. This class was originally included in the engine as part of the ReferenceViewer module, but was re ...

Reimport Skeletal Mesh break Morph Targets if you have Active Reduction on base LOD

Recent change to Material Expression code missing a case for "exp2" function in switch (cpp)

The function "FMaterialDerivativeAutogen::GetFunc1ReturnType(...)" does not have a case for "EFunc1::Exp2". Also found in Release-5.4, CL: 331987674 ...

Machine ID is not being shown on the crashreporter website

This is a regression from 4.14.3 ...

VREditor - Vive: HMD waking up from "sleep" triggers Auto Entry to VR

Normally this has not been as much of an issue, but recently SteamVR has dramatically decrease the time-out / "sleep" timer to something along the lines of 5-10 seconds... so the headset constantly ...