Project upgrade to 4.15 does not complete if the Runtime Mesh Component is installed in version 4.14 and not in 4.15

UE - Foundation - Core - Apr 17, 2017

If the Runtime Mesh Component is installed in the 4.14 Binary Engine, upgrading a copy of a code project from 4.14 to 4.15, even if it does not use that plugin, will result in the upgrade process ha ...

Crash copying a Static Meshes primitive collision member and pasting it on another element

Tools - Jul 24, 2017

Crash copying a Static Meshes primitive collision member and pasting it on another element. The pasted element seems to need at least 2 members for the crash to occur. User description: Editor Cr ...

Rendering sequence with livelink data has issues with smooth engine offset

UE - Virtual Production - IO - LiveLink - Apr 26, 2023

[Link Removed] for reference Playing back a sequence shouldn't have buffered samples. We should have a single one, which was built from the sequence. We need to make sure when played back that it ...

Layered Control Rigs + Skeletal Mesh with Animation Blueprint in the Sequencer

UE - Anim - Anim in Engine - Aug 13, 2024

When a layered control rig track is added to the sequencer the character’s legs will collapse into the body of the character. Switching the layer to additive will do nothing. Trying to force the ani ...

Modifying the properties of a ChildActorComponent in a child blueprint can modify the parent actor ChildActorComponent properties.

UE - Framework - Blueprint - Dec 10, 2024

When a property of a ChildActorComponent is modified in a child class, the parent ChildActorComponent class can also get modified. This happens when the Parent blueprint actor has a ChildActorCompo ...

Missing Jump Nodes for Character Blueprint in 4.8 verstion of Animatioin Starter Pack

Docs - Samples - Jul 10, 2015

While other inputs are set up for the Character BluePrint, the inputs for Jump are missing so that, even if the user enters Action Mappings for jump under project settings, the character may play t ...

Crash caused by character referencing a reparented AnimBP

OLD - Anim - Oct 18, 2017

Placing a character that reference to a reparented AnimBP(created as a child of thirdperson, then reparented to AnimInstance) crashes editor after reopening the project. If you already had that charac ...

Level Streaming Blocking Loads Do Not Work

UE - Gameplay - Jun 4, 2018

It is believed that If Should Block On Load is TRUE, the entire game should freeze up until the entire level is loaded. Then If Should Block On Load is FALSE, the game continues to play while the le ...

OnAudioPlacebackPercentage PlaybackPercentage (float) doesn't take into account "Start Time" from Play or FadeIn nodes

UE - Audio - Aug 17, 2020

PlaybackPercent on the OnAudioPlaybackPercent event does not account for Start Offset from the Play or FadeIn node. Reported and tested in version 4.25.3 (CL-13942748) and version 4.24.3 (CL-115903 ...

"Favorite Levels" not persisting correctly when changed in the Editor

UE - Editor - Workflow Systems - Nov 21, 2023

In the Level Editor's "File" menu, there is a "Favorite Levels" list, which is persisted in the config file "EditorPerProjectUserSettings.ini" under section "[FavoriteFiles]". Manually editing this ...