Unreal Engine Issues
Unreal Engine Issues
All Megascan asset libraries are missing
TM - Core - Oct 15, 2025All Megascans assets no longer appear in Twinmotion 2025.2 hotfix (46767548). Other libraries do not appear to be affected. ...
Lighting behavior is unreliable for translucent lit materials, results are inconsistent depending on the editor camera's FOV and the editor viewport's width/height/aspect
UE - Rendering Architecture - Oct 27, 2024When working on the level editor viewport or testing on PIE, the visual appearance of additive/translucent lit materials changes significantly (and abruptly) when varying the camera FOV or the viewp ...
ARCore fails to package due to permission error with ARKit enabled
UE - Platform - XR - Jan 17, 2019When using the handheld AR template and trying to package for ARCore, the package or launch on attempt will fail due to some permissions errors with Apple. If ARKit is disabled the editor will lock ...
Float Curve evaluation may yield completely wrong results due to floating-point precision issue
UE - Anim - Runtime - Oct 31, 2024Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...
GearVR crash with material using Fresnel or WPO on Snadragon S7
UE - Platform - Mobile - May 19, 2016Talking with ChrisB, this has been passed to Samsung and Qualcomm for investigation with the Signal 11 crash. This only affects the Snapdragon S7 devices. ...
ShooterGame clients are unable to see LAN Off servers in the browser
UE - Online - Jan 15, 2017Mac is unable to host Mac or Windows clients in ShooterGame . The issue does not occur in: 4.14.3 - 3251583 ...
[CrashReport] CastChecked<UAnimBlueprint,UBlueprint>()
OLD - Anim - Jul 14, 2017This is a common crash affecting users in 4.16. Users have not provided additional information. Source context not available ...
Set members in Slate Color for the foreground color of a combo box does not appear to change the color of the selected text
UE - Editor - UI Systems - Mar 14, 2018When setting the foreground color through blueprints at run time for a combo box it does not appear to affect the the selected item text. ...
Scene Capture 2D: additive mode not working in 4.19
UE - Graphics Features - Apr 20, 2018Additive Composite Mode is not behaving as expected in 4.19 User reports that Composite mode is also affected. ...
Vehicle using Async Scene Crash
UE - Simulation - Physics - Nov 6, 2018Setting a Vehicle to Asynchronous physics will cause a crash. Confirmed in 4.22 Main at CL 4542756 ...