Unreal Engine Issues

Crash occurs with gameplay tag map variable compiles with default value changed

there is a crash that occurs with gameplay tag map variable compiles with default value changed. This issue occurs no matter what the secondary value of the map is. I was unable to test this issue i ...

Access Violation crash deleting a Widget Blueprint with an unsaved Animation track - FSequencer::Tick()

Encountered an Access Violation crash while deleting an Widget Blueprint with an unsaved Animation Track. The callstack references FSequencer::Tick(). I was not able to reproduce this issue in UE4/ ...

Crash in PlayReverse

Crash in BuildVisibleDecalList

[MetaSounds] - Changing an Input to Modulation Parameter crashes editor due to module load order

Setting an Input type on Modulation Parameter crashes the editor with:Assertion failed: Pair != nullptr [File:E:\SMoyls_UE5_Release-5.0\Engine\Source\Runtime\Core\Public\Containers\Map.h] [Line: 643 ...

Crash When Attempting to Add Existing Streaming Levels Already Present in the Levels Window

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

Blank Blueprints project with Starter Content crashes when PIE Standalone Game or Mobile Preview

This is only occurring on Mac and looks like it is Metal related based on the callstack. I was only able to reproduce this on the Blank template so far. First Person and Third Person templates did ...

Editor Crash when attempting to enter Mesh Paint / Landscape /Foliage Modes while Simulating

Editor crash will occur when a user attempts to enter the Mesh Paint, Landscape, or Foliage modes while Simulating. Links to CrashReporter: Foliage: [Link Removed] Landscape: [Link Removed] Mesh Pa ...

Importing an Alembic File with "Skip Empty Frames at Start of Alembic Sequence" Enabled Causes Crash

Importing an Alembic File with "Skip Empty Frames at the Start of Alembic Sequence" Enabled Causes Crash. Found in 4.20 Preview 5 CL# 4173640 and 4.21 CL# 4207835 ...

Crash importing abc file as Geometry Cache over another used in level with World Normal view mode on

Crash occurs when the user attempts to import an .abc file as a Geometry Cache over itself, while the asset is in the level and Buffer Visualization is on in the viewport. ...