[CrashReport] UE4Editor_UMG!TBaseDelegate<FMargin>::operator=() [delegatesignatureimpl.inl:381]

UE - Editor - UI Systems - Aug 29, 2017

This is a longstanding and common UMG crash that has affected more than 200 users since at least the 4.15 release. User DescriptionsI was working in the UI and undid several last changes in quick s ...

Planar Reflections Cause Big Performance Hit In Packaged VR Projects

UE - Platform - XR - Jan 22, 2020

Planar reflections notably lower performance in packaged VR project. Linked is an example project and an example package. [Link Removed]. This was tested on a Vive Pro and Oculus Rift(not Rift S). ...

Cannot access private member MarkPropertyDirtyFromRepIndex error when building a nativized blueprint with a replicated property

UE - Networking - May 14, 2020

The following error occurs when building a project that has a replicated variable with the replication condition set to Skip Owner inside a nativized blueprint.UATHelper: Packaging (Windows (64-bit) ...

"Reference space" when exporting LevelSequences with "Override Instance Data"

UE - Anim - Sequencer - May 15, 2024

When exporting a Cinematic Camera as FBX and importing it back, all transforms and Camera view are shifted. This happens when in Level Sequence Actor has the property "Transform Origin Actor" set to ...

Diffing blueprints in Perforce changelist reviewer incorrectly displays blueprints that reference assets not in local filesystem

UE - Framework - Blueprint - Nov 22, 2024

When diffing a blueprint in the Perforce changelist reviewer in-editor (Review Changelists), if the blueprint references an asset that does not exist locally but rather exists as a newly added asset ...

Steam friends list is duplicated when opened for a second time in the packaged version of Shooter Game

UE - Networking - Jun 29, 2015

If a user is logged into a Steam account with between 1 and ~10 friends (Max depends on resolution, as it'll push the excess off the screen) and they open the friends list multiple times, it'll dupl ...

Sequences in sub-levels only fire events in the persistent level

UE - Anim - Sequencer - Mar 28, 2016

Sequences in sub-levels only fire events in the persistent level. I don't know if they're expected to be firing in all levels or just the sub-level ...

[CrashReport] Assertion failed: GetOuter()==NULL in UE4Editor_Core!FText::IsEmpty

Tools - Apr 17, 2017

This is a top 10 crash affecting many users. It is believed it may be related to the auto listen / reimport feature. The callstack shares similarities to past tickets, such as:[Link Removed][Link R ...

Compilation manager inhibit construction script to get other actor reference on the level when running construction script right after actor compile.

UE - Gameplay - Blueprint - Aug 9, 2017

Construction script execution following blueprint compile gets invalid actor reference if Blueprint compilation manager is enabled. For example, in the attached project, Right after blueprint compi ...

[CrashReport] TOctree<TVolumeLightingSample<3>,FLightVolumeOctreeSemantics>::TConstElementBoxIterator<TInlineAllocator<99,FDefaultAllocator> >

UE - Graphics Features - Oct 5, 2017

This Jira is a continuation of [Link Removed]. This is the same callstack which users are submitting, however the other Jira eventually got specific repro steps which were verified fixed in 4.17.0. ...