Unreal Engine Issues
Unreal Engine Issues
Skeletalmesh editing can be slow when asset have a lot of morphtarget
UE - Editor - Mar 3, 2020After investigation, the asset is not rebuild, what took time is the 2 following partThe serialization of the DDC where we have to initialize the morph targetsE:\P4\main\Engine\Source\Runtime\Engine ...
Default Hot Key or any key it is set to for Mesh Painting Brush Size doesn't work
UE - Editor - Workflow Systems - May 9, 2022This is a regression – in 4.27.2 the bracket keys do not change the Brush Size even though it is the default hot key. However, changing the hot key to something else works in 4.27.2. Hot Keys are n ...
Opening map assets from "Open World Demo Collection" causes engine to freeze
Docs - Samples - Mar 9, 2020Opening map assets from the "Open World Demo Collection" sample results in the engine freezing. No crash occurs, just a lock up of the engine at 75%. There is the possibility that it could take s ...
iOS movie (mp4) has no sound in the playback.
UE - Platform - Mobile - May 16, 2017There is no sound in the movie play in iOS, built with 4.16 GitHub source code version. you can simply reproduce using attached sample project. This is reproduced in iPhone 5s(10.3.1) iPhone 6(iOS ...
Disabling bLerpUVs in Nanite Settings of Static Mesh causes texture warping in clusters
UE - Graphics Features - Nanite - Jan 21, 2025The licensee has identified a potential fix by changing if( Settings.bLerpUVs ) to if( Settings.bLerpUVs || UVIndex == 0 ) On line 389 of NaniteBuilder\Private\Cluster.cpp in UE 5.5 ...
Editor crash with Japanese ATOK input(candidate list related)
UE - Editor - UI Systems - Localization - Jul 5, 2017This is probably a continuation from [Link Removed]. [Link Removed] fixed the crash with MS-IME input, but crash/instability can still happen with another Japanese input system, ATOK. ...
When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered
UE - Audio - May 31, 2016When playing matinee, scrubbing can cause sound to keep playing when it isn't triggered Note: This was entered as a bug to re-work the fix from the pull request found here: [Link Removed] ...
Attempting to connect to Perforce source control causes a crash
Tools - Oct 16, 2015Selecting Perforce from the list of source control options will cause the editor to crash. Crash Reporter [Link Removed] May also be the same as: [Link Removed] REGRESSION? Yes. Issue did not occ ...
Negate Blueprint Macro Returning Original Value
UE - Gameplay - Blueprint - Sep 21, 2016The Negate blueprint macros (NegateInt, NegateFloat) are returning the original value. Found in 4.12.5 CL 3039270. Reproduced in 4.13 CL 3106830 and 4.11.2 CL 2946394. ...
Physics Asset doesn't follow the Skeletal Mesh when Physics Blend Weight is set to any value between 0 and 1
OLD - Anim - Feb 9, 2017Physics Asset doesn't follow the Skeletal Mesh when Physics Blend Weight is set to any value between 0 and 1. Could be related the the fix for this JIRA: https://jira.it.epicgames.net/browse/UE-192 ...