Unreal Engine Issues
Unreal Engine Issues
Landscape Layer Blend generates bad code for preview shader
UE - LD & Modeling - Terrain - Landscape - Sep 23, 2019It breaks only when compiling the preview shader. Adding a preview weight to the Layer0 on the Layer Blend node fixes the problem. The source of the bug is in UMaterialExpressionLandscapeLayerBlend ...
Crash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true
UE - Graphics Features - Path Tracer - May 16, 2025Cash when entering Path Tracing view mode if r.Decal.NormalReprojectionEnabled true The licensee has reported: This crash happens because the DeferredShadingRenderer tries to extract the normal GBu ...
DataTable::LoadStructData allocating wrong size
UE - Foundation - Core - Oct 5, 2016Pointed out by a licensee here: UDataTableを読みこんだ際のメモリ破壊について When reading the `UDataTable, in DataTable::LoadStructData()` the contents of the struct are interpreted[Image Removed], but the size of ...
[CrashReport] FIntroTutorials::AnalyticsEventNameFromTutorial()
Tools - Jul 6, 2017This is a common crash that appears to have started in the 4.16.1 hotfix, but has occurred with more frequency in 4.16.2. User DescriptionsAfter the blueprint tutorial, I pressed "play", pressed ES ...
Disabling Gear VR plugin causes packaged game to crash on launch
UE - Platform - XR - May 30, 2017Disabling the Gear VR plugin causes packaged games to crash on launch. This could be related to [Link Removed] but this is new to 4.16 and does not prevent packaging the project, only launching it a ...
UDN : Mutable Trying to Access Invalid UEdGraph Pointer
UE - Anim - Mutable - Mar 6, 2025Hello, We've started seeing a crash within Mutable when it tries to access the source graph in PIE. This only seems to be a problem when running a dedicated server as a separate process. We integra ...
Crash upon taking a screenshot on Gear VR
UE - Platform - XR - Jul 13, 2017Using the shot console command or the RequestScreenshot function to take a screenshot in Gear VR causes the app to crash. This was tested on Android-19, ETC-1 configuration, with both Developer Mode ...
Level cannot save when compile setting is changed on blueprint present in level
UE - Gameplay - Blueprint - Aug 21, 2017When using a project that has a blueprint in a level when the project is created, there is an issue that is occurring when you modify the compile settings and attempt to save the level There is an e ...
Crash when travelling during ability activation when URL contains "#"
UE - Framework - Jul 18, 2025This issue is related to [Link Removed], where the "?listen" option sent on the URL to clients could cause issues with RPCs being called locally during travel. The fix to remove the "?listen" option ...
Paint Mode button options disappear when toggling on "Use Small Tool Bar Icons" in the User Interface
Tools - Nov 30, 2017When toggling on the "Use Small Tool Bar Icons" under the User Interface settings, the button options that sit directly under the Colors, Weights, and Textures options in Paint mode disappear. Thi ...