iOS builds fail on Windows.

UE - Platform - Mobile - Systems - May 15, 2026

Loading Windows installed iOs mobile provisioning profiles fails at start of iOS build from windows machine. This due to a recent change that attempts to load PKCS12 from mobileprovision files. Thes ...

Blueprint Editor: BP functions display dropdown instead of checkboxes for uint8 enum parameters

UE - Gameplay - Blueprint Editor - Aug 8, 2017

I traced through the callstack and it looks like the problem is as follows:in order for the BP function to compile, its enum parameter must be uint8, because that is the only type supported by BP fu ...

Assertion failed: ExportSettings == *ExistingExportSettings [File:D:\build\++UE5\Sync\Engine\Source\Editor\UnrealEd\Private\Lightmass\Lightmass.cpp] [Line: 546]

UE - Rendering - Features - Sep 12, 2023

Generated from CrashReporter Logs can be obtained via Crash Reporter ...

Distance Fields no longer work with instances when PIE/Simulate

UE - Graphics Features - Apr 20, 2015

When using distance fields with instance meshes from the foliage tool everything works correctly, however, when simulating or PIE the distance fields will be removed. This working correctly in 4.7.5 ...

Get Ping in ms returns 9999 in a packaged game when tested on systems not on the same network

UE - Networking - Feb 25, 2016

Get Ping in ms returns 9999 in a packaged game when tested on systems not on the same network. This does not prevent Client connection to the Server. Note: my understanding is this would be caused ...

Joining a session in PIE with Auto Connect To Server disabled will crash PIE

UE - Networking - Nov 11, 2015

Joining a session in PIE with Auto Connect To Server disabled will crash PIE. Note: this is not specific to the Multiplayer Shootout project used in the repro steps; this will occur in any project ...

The Default Value for a Timespan variable resets whenever its Blueprint is compiled

UE - Gameplay - Blueprint - Nov 30, 2014

The Default Value for a Timespan variable resets to 00:00:00.000 whenever its Blueprint is compiled. ...

Imported tiled landscapes into World Composition Browser have seams between landscape tiles

UE - LD & Modeling - Terrain - Landscape - Mar 19, 2015

Landscape seams appear between world composition browser imported heightmap tiles. Workaround: Run over seam with smoothing tool set to strength 0.0 ...

Get Data Table Row cannot accept non-literal Data Table input information

UE - Gameplay - Blueprint - Mar 16, 2015

Get Data Table Row node cannot accept non-literal input in the "Data Table" input. Additionally, this cannot be promoted to a variable. ...

World Composition Browser sublevels register as edited/needs to be saved when levels browser is closed and reopened

UE - LD & Modeling - Terrain - Landscape - Mar 13, 2015

Sublevels appear dirty when the level browser is closed and re-opened. ...