Unreal Engine Issues
Unreal Engine Issues
Media Player can't continue to play after the progress bar is dragged.
UE - Media Framework - Nov 15, 2023This bug occurs in 5.3 version. It's ok in 5.2 version. ...
Category is not stored to Timeline Component
UE - Gameplay - Components - Jan 27, 2016Category of Timeline Component is not stored. (Reproduced 4.11 Preview and 4.9 too.) ...
QAGame Crashes on launch on iphone 6 (iOS 8)
UE - Platform - Mobile - Jan 16, 2017this crash was encountered during the mobile compat for 4.15. So far, just this device has been affected. ...
[CrashReport] Assertion failed - FAssetEditorManager::OpenEditorForAsset()
UE - Anim - Sequencer - Jul 20, 2017This is a common crash affecting users in 4.16. Unfortunately they have not provided any additional information ...
Game start slowing down when there are more than 10 sprites in the level
UE - Gameplay - Paper2D - Apr 10, 2018Sprites seem to be drastically affecting FPS in 4.19 projects on Mac devices. ...
open asset in editor crash (Objects have the same fully qualified name but different paths)
UE - Gameplay - Blueprint Compiler - Sep 15, 2022in 4.27 open this asset could not crash ,but 5.0.2 could get crashed ...
BuildPatchTool doesn't finish if enabled building Http Chunk on Mac
Portal - Jan 25, 2021We may fix this issue by the following codes. FPakPlatformFile::FPakPlatformFile(): LowerLevel(NULL) ,bSigned(false) { // remove //FCoreDelegates::GetRegisterEncryptionKeyMulticas ...
Crash when clicking "Reset to Default" button on the Details Panel for the MaterialAttributeLayers material node.
UE - Rendering - Architecture - Materials - Jul 15, 2025This crash repros from at least UE 5.3 and up to latest. The following assert is hit: Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 1067] Array index out of bounds: 0 in ...
Viewport has graphical glitch while editing but not in PIE
Tools - Feb 6, 2015User has a project that the viewport has gotten corrupted. The icons are now no longer camera facing and are facing in the positive y axis. The sun disc and sky are blurred. When PIE everything rend ...
Events on frame 0 fire twice
UE - Anim - Sequencer - Jan 17, 2017Regression - does not occur in 4.13.2 or 4.14.3 Does occur in Dev-Sequencer ...