Unreal Engine Issues
Unreal Engine Issues
Ray Traced Ambient Occlusion Uses Resources Even if AO Intensity is 0
UE - Graphics Features - Lumen - Aug 22, 2019Ray traced Ambient Occlusion is still active even when Ambient Occlusion Intensity is set to 0 in the Post Process Volume. Found in 4.22 CL# 7053642, 4.23 CL# 8115738, 4.24 CL# 8124506 ...
Crash when setting Anim to "None" with URO
OLD - Anim - Aug 28, 2019A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...
Renaming Sprite Actor in Struct Blueprint, and closing the Editor causes de-reference
UE - Gameplay - Sep 12, 2019Paper Sprite actor set as a Default Value in a Blueprint Struct is set to none, when the sprite is renamed, saved, and the Engine is restarted. ...
When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float"
UE - Gameplay - Sep 13, 2019When searching for the "Timespan / float" the Context Sensitive search returns "Timespan * float". Found in 4.22.3 CL#7053642 Reproduced in 4.23.0 CL#8386587, 4.24.0 Main CL#8671808 ...
Import From Animation Root option on transform tracks creates a new absolute transform track
UE - Anim - Sequencer - Sep 9, 2019Importing root motion onto a transform creates a new absolute track, which can blend unexpectedly with existing transforms. ...
Divide by zero in beam update can cause editor to crash in Cascade
UE - Niagara - Sep 23, 2019The licensee has traced the issue back to a divide by zero in UParticleModuleTypeDataBeam2::Update. If the Target and Source are the same then the beams magnitude will be zero. When there is a Nois ...
[CrashReport] UE4Editor_Engine!CropRawTrack() [animsequence.cpp:1798]
OLD - Anim - Dec 14, 2018Comment from user in crash groupTried to delete frames in an animation ...
Encryption handshake will fail if a seamless travel occurs during key lookup
UE - Networking - Oct 4, 2019The encryption token challenge/response portion of the control channel handshake can fail due to a seamless travel occurring between the client's NMT_Hello being received by the server and the serve ...
Simple collision Landscape returns incorrect physical material
UE - LD & Modeling - Terrain - Landscape - Oct 16, 2019When a landscape uses simple collision, the returned physical material can be mismatched. This seems to be a result of ConvertHeightfieldDataForPhysx within ULandscapeHeightfieldCollisionComponent: ...
Calling GEngine->Browse from an RPC implementation causes a crash
UE - Networking - Nov 5, 2019The engine is not resilient to calling Browse from within an RPC implementation, and likely not resilient to other ways of destroying the net driver within RPCs/OnReps. It's not something we need to ...