Light min roughness set to 0 will create black artifacts on materials with negative roughness value

UE - Graphics Features - Aug 9, 2016

Any light's min roughness setting creates black artifacts with materials who have a roughness value less than 0. The min roughness must be =< 0. ...

Set user focus for player 0 will cause other local players to lose input

UE - Gameplay - Input - Feb 28, 2019

When the player at index 0 sets its user focus it will cause other players to lose input. This does not occur when setting the user focus of players with an index higher than 0. ...

SyncGroups Do Not Function between AnimSequences when Blend Time is 0

OLD - Anim - Sep 22, 2015

SyncGroups Do Not Function between AnimSequences when Blend Time is 0 (zero) *It is quesitonable SyncGroups function between AnimSequences regardless of what the blend time is set to, but especiall ...

Morph target for SK_BoxMorph_1 exceeds 1.0, causes the sphere shape to bend inward

Docs - Samples - Jul 10, 2017

In Content Examples, the morph targets assigned to SK_Box_Morph_1 exceed 1.0. While it's not "wrong" for morphs to go beyond that, it doesn't seem like it's a great demonstration in the asset. Goi ...

TimeSynth Counts Beats: 1,2,3,0

UE - Audio - Apr 2, 2020

TimeSynth Counts Beats: 1,2,3,0 Link to project files: https://forums.unrealengine.com/unreal-engine/announcements-and-releases/asset-sharing/1724414 ...

Setting Physics Blend Weight to anything between 0 and 1 causes erratic behavior

UE - Simulation - Physics - Jul 27, 2015

If the user simulates all bodies, and then sets the physics blend weight to a decimal value between 0 and 1, the skeletal meshes will spin out of control. This doesn't happen if the physics blend w ...

Analog Input does not work for network clients (AddMovementInput scale values other than 0 and 1 do not replicate for clients)

UE - Gameplay - Jun 26, 2015

If a value other than 0 or 1 (Ex. 0.1) is put into the 'Scale Value' parameter for the Add Movement Input node, any clients will respond as if the value is 1. User claims this worked in 4.6. ...

If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing

UE - Anim - Sequencer - Jun 13, 2017

If Pause Event is played in second half of Fixed Frame Interval, you can't resume playing. Pause event appears to fire again when trying to resume playback. To expand on the summary, if you have a ...

[CrashReport] UE4Editor_SlateCore!TWeakPtr<SWidget,0>::Pin() [sharedpointer.h:1120]

UE - Anim - Sequencer - Aug 16, 2017

This is a trending crash in the 4.17.0 release. User DescriptionsEditor is crashing each time when i start movie rendering in sequencer (Separate process) Source Context 1109 /** 1110 ...

Last frame pose is not evaluated when playing Anim Montage with Blend Out Time of 0 in AnimNodeSlot

UE - Anim - Gameplay - Apr 26, 2022

When playing AnimMontage with BlendOutTime set to 0.f with AnimNode_Slot of AnimBP, it seems that the last frame pose may not be evaluated. this issue does not occur in high frame rate and does not ...