Unreal Engine Issues
Unreal Engine Issues
Unwanted offset on curves when importing animation assets
UE - Editor - Content Pipeline - FBX - Jun 27, 2025Hello, We seem to have encountered some unwanted behaviour when importing certain curves from our animation fbx assets into Unreal. Some of these curves don't have keys from the very first frame, b ...
Mismatch widget component collision and geometry
UE - Editor - UI Systems - Jun 6, 2019There is a mismatch of collision and geometry of WidgetComponent. This doesn't occur in 4.21. It can only be seen in 4.22. [Workaround] Change following code in UWidgetComponent::UpdateBodySetu ...
Resolution retrieval issues caused by multi-monitor hot-swapping.
UE - Rendering Architecture - RHI - Feb 24, 2025I looked into the underlying code, and it seems that this situation is not well handled. One possible solution is to trigger EnumAdapters() when the system fires the WM_DISPLAYCHANGE message. This ...
Notifies near start of animation do not trigger when played through slots
OLD - Anim - Apr 6, 2016Notifies near the start of an animation do not trigger when played through slots with either the PlaySlotAnimationAsDynamicMontage or with a Montage. There could be other instances of this, but the ...
Landscape Tutorial Missing a Word
Docs - Dec 9, 2019In the Landscape Tutorial Overview there is a word missing in the tutorial. ...
Unreal Insights does not recognize Android if connecting with USB cable
UE - Foundation - Insights - May 13, 2022Unreal Insights doesn't recognize USB-connected Android in UE5, even with the same flow as UE4.27. By the way, I checked UECommandLine.txt, but I didn't find any issue. It may be related to the nee ...
Shadows disappear on assets with baked matrix animations
UE - Gameplay - Oct 21, 2016After importing an asset with baked matrix animations, using the alembic importer, the shadow disappears as the asset pans to the left and the right. ...
Using nativized functions on buttons to spawn meshes causes assertion failure
UE - Gameplay - Blueprint - Oct 25, 2016An assertion failure is thrown when using nativized functions on an Android device. ...
Previewing Nav Mesh in DX12 Mode causes Editor to Crash
UE - Graphics Features - Mar 7, 2016In UE4.11p6, previewing Nav Mesh in DX12 Mode causes Editor to crash. ...
Collision Not Working on Dynamically Spawned Objects While Using 'Cook Blueprint Component Data for Faster Instancing at Runtime'
UE - Gameplay - Blueprint - Dec 13, 2016Dynamically spawned objects' collision does not seem to be working in a packaged game when the Cook Blueprint Component Data for Faster Instancing at Runtime option is enabled. Found in 4.14.1. Un ...