Unreal Engine Issues
Unreal Engine Issues
FNetGUIDCache warning when attaching non-replicated component to a replicated scene component
UE - Networking - Jul 18, 2024When the replicated scene component's AttachChildren array is replicated, the package map attempts to serialize the non-replicated component, causing the warning that the object is not supported. ...
Scalebox scaling won't update if child size changes with global invalidation enabled
UE - Editor - UI Systems - Slate - Jul 17, 2024When global invalidation is enabled, Scale Boxes don't react properly to changes in the size of their contents. Licensees have worked around this by updating SScaleBox::OnArrangeChildren:// This sca ...
Imposter renders incorrectly in PCG volume after updating to 5.4
UE - World Creation - Procedural Tools - PCG Component - Jun 27, 2024The last level of impostors in PCG volumes render incorrectly after updating from 5.3 to 5.4. ...
Reliable subobject creation bunch may overwrite previously received property on the actor
UE - Networking - Jun 21, 2024This seems to occur because of how reliability and the retransmission of dropped data is handled in the engine. If a reliable bunch is dropped, the entire bunch will be resent, but any unreliable bu ...
Join in progress clients won't receive that a net startup actor is hidden
UE - Networking - Jun 21, 2024This seems to be because IsNetRelevantFor checks if the actor is hidden, resulting in a hidden actor not being considered relevant to clients. However, if it is a net startup actor, this will result ...
CommonUI Analog Cursor + Enhanced Input triggers cause Gamepad Face Button Bottom triggers to get stuck when alt-tabbing
UE - Gameplay - Input - Jun 18, 2024Reproduction rate: 5/5 Regression check: No, this also occurs in 5.4.2. Please note that this issue only reproduces with the Gamepad Face Button Bottom and does not occur for any other gamepad butt ...
Can't set "r.Shaders.Optimize" to false in UE5.4
UE - Rendering Architecture - Shaders - Jun 7, 2024The CVar "r.Shaders.Optimize" cannot be set to false from DefaultEngine.ini in the section "[ShaderCompiler]" as its help text describes. Also tested on UE5-Main, CL: 34200103 ...
Problem with material layers using interpolator nodes
UE - Rendering Architecture - Materials - Jun 7, 2024The Vertex Interpolator Material Expression appears to collapse separate instances from separate Material Layers, leading to visual artifacts when used. Also tested on UE5_Main, CL: 34200103 ...
PostReplicatedChange called for fast array item even when no values change
UE - Networking - Jun 7, 2024Unless a property is set to REPNOTIFY_Always, we compare the property's received value to the current value on the client before calling the OnRep function. However, when determining if a fast array ...
ControlRig & Sequencer: FindControlRigs returns rigs even if their track have been removed
UE - Anim - Rigging - Jun 5, 2024Constraint Actor to Rig with Editor Utility Widget is working for the first time adding to the Sequencer. However if it was deleted and added to Sequencer again, run Scripted Actor Action shows Err ...