"Error Provision not found" even though the provision is present and valid in 4.13.1

UE - Platform - Mobile - Oct 31, 2016

A few users are reporting on the Answer Hub and in the Forums that they are getting the following error in their output logs: "Error Provision not found" even though the provision is present and va ...

[CrashReport] UE4Editor_AnimGraph!FCSPose<FCompactHeapPose>::GetComponentSpaceTransform() [bonepose.h:533]

UE - Anim - Rigging - Nov 2, 2017

This is a trending crash coming out of the 4.18 release and may be a regression. Users have not provided any details about their actions when the crash occurred. Source Context 528 template ...

[CrashReport] Assertion failed: NewWorld | UE4Editor_Engine!UEngine::LoadMap()

UE - Gameplay - Nov 2, 2017

This is a common and longstanding crash that has occurred since at least 4.15. Originally this was being tracked under [Link Removed] due to sharing the same callstack, but that had specific repro ...

Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer

UE - Platform - Linux - May 29, 2019

Using the Editor in Fullscreen mode on Linux causes it to freeze and occasionally lock up the computer. This freeze causes the various symptoms described in the Results field. In 4.21.2 (CL-4753647) ...

Disconnecting root node in behavior tree editor has no effect

UE - AI - BehaviorTree - Aug 27, 2020

I was testing some behavior tree content and wanted to temporarily disable a behavior tree entirely. So, I disconnected the root node from the selector node below it and expected that to disable the ...

Incremental Cooks: Add dependencies on files loaded during Load/Save of the package

UE - Foundation - Data Pipeline - Cooker - Oct 19, 2022

Iterative and Incremental cooking are supposed to recook packages when their "inputs" change. Most of the time inputs are the package file itself and the other package files on which it has dependen ...

Mesh Space Additive behave differently for non-animated bones and extra bones on a target skeleton

UE - Anim - Runtime - Dec 6, 2023

Typically, non-animated bones behave the same way as extra bones on a target skeleton. However, it appears that this isn't the case for mesh space additive sequences. When a bone is present on th ...

Setting blueprint name as a copied blueprint node crashes editor

UE - Editor - UI Systems - Slate - Jun 1, 2016

Setting blueprint name as a copied blueprint node crashes editor Frequency 5/5 Crashreporter [Link Removed] Regression (no) issue (does) occur in 4.10.4 ...

Editor Crash when custom Enum is used as Set or Map container type

UE - Foundation - Core - Mar 14, 2017

Making a blueprint variable a container (a Set or a Map with the Variable's "Pin Type" set to a custom Enum) and restarting the editor causes the editor to crash when opening the blueprint. Note: O ...

Crash when splitting a UDS pin on a collapsed graph

UE - Gameplay - Blueprint - Jan 27, 2017

I came across this bug while attempting to verify UE-41073. That bug is verified, but I accidentally added the struct into the collapsed node without going into the collapsed graph and split the col ...