Unreal Engine Issues
Unreal Engine Issues
References stored in deleted UProperties stick around in a Blueprint Class
UE - Gameplay - Blueprint - Apr 25, 2017If a UProperty that stores a reference to an asset is deleted, the reference to that asset lingers in any Blueprints that had a reference stored in that UProperty. This can lead to issues when the r ...
Animation sequence's ParticleNotify doesn't fire while playing it back in Sequencer editor
UE - Anim - Sequencer - Mar 21, 2018The ParticleNotify should always be triggered while playing in sequencer editor regardless whether the spawned particle is attached or not to it's bone/sockets This stopped working since 4.15 versi ...
[Feature Request] Scaling Curves ( Weighted Tangents ) Support for Sequencer
UE - Anim - Sequencer - Apr 3, 2018Some licensees requested the feature. ...
Delay nodes occasionally don't fire the "Completed" output in a nativized build.
UE - Gameplay - Blueprint - Jun 13, 2018This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...
Net Multicast RPC functions do not fire other session members properly
UE - Networking - Sep 5, 2018Using a multicast function does not call the function on both client and server. The functionality in this reproduction project can be found in the BP_MyPC blueprint. Regression?: No This occurs in ...
Startup movies do not support 1080p video, and fails silently in the process
Tools - Oct 11, 20181080p videos do not play as startup movies, and there is no indication as why given by the editor. 1080p videos will work with media framework. There is no documentation either, so there is no indic ...
[Feature Request] Random number generators in UE4 have short periodicity.
UE - Foundation - Core - Nov 14, 2019Random generators in UE4 have a short periodicity. (FMath::Rand and RandomStream) I heard a xorshift variant has good characteristics. Could we consider importing it into UE4? [Image Removed] ...
Support for import/reimport of mesh LODs is unavailable in Blueprint and python
UE - Editor - Content Pipeline - Import and Export - Mar 31, 2020The missing API prevent clients to do good scripted import pipeline tools. there is two UDN thread that can be solve by this JIRA https://udn.unrealengine.com/questions/566538/how-to-add-a-custom- ...
iOS 14.5 - Code Signing Version No Longer Supported
UE - Platform - Mobile - May 3, 2021Using the remote build process (making an iOS build from Windows with a remote Mac) no longer functions properly on iOS 14.5 devices. It's possible to create an ipa, but it's not actually possible ...
Niagara : incorrect rendering on D3D12 when rendering a very large number of meshes
UE - Niagara - Feb 17, 2022The input argument of DrawIndirect for Niagara meshes, which is made by ComputeShader, may be invalid. This problem does not appear with -onethread command line option. ...