Unreal Engine Issues
Unreal Engine Issues
Procedural meshes spawned at runtime cause a crash
UE - Simulation - Physics - Jan 10, 2017When using a procedural mesh at runtime, projects fail on mobile devices. Tested on both Android Nvidia Shield and iPhone 6+. ...
When using a SpeedTree asset, a Zero Triangles warning appears
Tools - Nov 25, 2019When exporting from SpeedTree with LODs + billboard, It seems that a warning is issued by including a material used only by Billboard. Is there a way to deal with it? ...
NavMesh generation should not care for Actors that are hidden in the Editor.
UE - AI - Navigation - Aug 5, 2025The problem is that the Cube is still loaded but "HiddenEd". It's AActor::bHiddenEdLayer property is set to true by the WorldPartition System. The Actor is dirty which makes the WP system pin it (wo ...
Unable to see a Texture Format when using the Launch On feature
Tools - Jan 21, 2015When you Click the Arrow down to the right of the Launch On button, The texture format for an Android device is showing as a jumbled mix of numbers and letters and not in any specific format. ...
Texture Compression Quality vs. Speed Tooltip shows Incorrect Range for Settings
Tools - Nov 23, 2016Texture Compression Quality vs. Speed settings menu description and Tooltip do not match. ...
Engine Scalability view distance settings are not being reflected accurately in the viewport
UE - Graphics Features - Jan 30, 2017The foliage in the map appears to be unaffected by the changes in view distance. The scalability settings are changing the cvars to the right values but the change is not being reflected on screen ...
Sharing TransitionRule of multiple AnimStateTransitionNode, when AnimBP is opened it becomes dirty
OLD - Anim - Dec 15, 2017Sharing transition rule it will be Dirty when AnimBP opens. When AnimBP is open, "if(BoundGraph->GetOuter () != Node)" is true in FBlueprintEditorUtils::UpdateOutOfDateCompositeWithOuter, BoundGrap ...
OnlineServices-Lobbies: Crash when host migration message is received and the next host has already left the session
UE - Online - Sep 9, 2024A crash occurs at FindChecked in the code below.if (PreparedServiceChanges->OwnerAccountId) { InternalPublicData->OwnerAccountId = *PreparedServiceChanges->OwnerAccountId; if (bDispatchNot ...
Particle CPU cost highly increase at second "show" of a streaming level.
UE - Graphics Features - Feb 24, 2016It seems that Particle CPU cost highly increase at second "show" of a streaming level. The Licensee's team sent a sample to reproduce this problem. So I put the project and wrote how to reproduce on ...
Shift + Leftclick selection not working in World Outliner
Tools - Aug 29, 2018The Shift + Leftclick selection range appears to break when selecting something in the World Outliner first followed by clicking something in the Viewport and then shift selecting a range back in th ...