Unreal Engine Issues

Material Parameter Collection parameters only return default values when drawn to a Render Target

Material Parameter Collection parameters only return default values when drawn to a Render Target This does NOT happen when drawing a material using a non-MPC parameter. To test this:Open Actor_BP ...

4.24 GitHub Build compile error - fatal error C1083: Cannot open include file: 'SketchUpAPI/geometry.h': No such file or directory

12>e:\github\unrealengine\engine\source\programs\enterprise\datasmith\datasmithsketchupexporter\private\DatasmithSketchUpCamera.h(7): fatal error C1083: Cannot open include file: 'SketchUpAPI/geomet ...

GeometrycacheActor light channel issue

Unreal Architecture link in Unreal Terminology website doesn't work

Unreal Architecture web link doesn't work. A user cannot enter the website to see the terminology of the Unreal Architecture. ...

GetActorsPerception useless in 4.7

The new AI Perception system's BP API, marketed in release notes, depends on UAIPerceptionComponent::GetActorsPerception, that, as one AnswerHub user points out, is useless due to a buggy condition ...

TimeRemaining doesn't work when animation has a negative play rate

TimeRemaining doesn't work when animation has a negative play rate ...

Jittering appears when setting DOF in ES3.1

For reference, it was fine in 4.24 In particular, jittering is severe when the camera is moving. GaussianHalfRes has been removed in CL 14036168, which is likely to cause degradation issues if int ...

Crash on mobile OpenGL with a retainer box

GAS: OnTagUpdated() not called when calling SetLooseGameplayTagCount()

Context AbilitySystemComponent has a virtual function virtual void OnTagUpdated(const FGameplayTag& Tag, bool TagExists); that gets called when a gameplay tag gets added or removed, so whenever ...

Multi-Material Skeletal Meshes assigned a Material in Details panel lose access to all other materials

When you assign a Material to a Multi-Material Skeletal Mesh via the Mesh's Level Viewport Details Panel, you will lose access to all the other material Elements after the first assignment. For ins ...