Memory Increase with mouse over Content Browser with AnimBP visible

UE - Editor - Content Pipeline - Content Browser - Aug 12, 2016

Memory Increase with mouse over Content Browser with AnimBP visible ...

Make array node elements break when editing struct elements

UE - Gameplay - Blueprint - Sep 23, 2015

If a Make Array BP node is connected to a structure, using the "Split Struct Pin" and "Remove Array Element Pin" options causes array elements numbers to change randomly. ...

Hot Reload: Component bCanEverTick is not updated after compile

UE - Gameplay - Components - Mar 15, 2017

Setting PrimaryComponentTick.bCanEverTick in a custom actor component's constructor does not does not stop the component from ticking after compile. ...

UIpNetDriver::ProcesRemoteFunction warnings appear for ShooterGame clients when switching weapons

UE - Networking - Nov 5, 2015

The following warnings appear in the output log for ShooterGame clients when switching weapons. [2015.11.05-19.41.11:550][253]LogNet:Warning: UIpNetDriver::ProcesRemoteFunction: No owning connectio ...

Launching packaged game on Oculus Rift through SteamVR without disabling Oculus plugins freezes periodically

UE - Platform - XR - Sep 26, 2017

Launching packaged game on Oculus Rift through SteamVR with -hmd=steamvr command line parameter periodically freezes Oculus (mirror window still visible and responsive). Freeze does not happen if i ...

When copying category properties, all the EditConst flags are not checked. This overrides variables that should not be written.

UE - Editor - Workflow Systems - Mar 12, 2024

If you create two actors that have the same structure of variables in a category, and you try to copy the category variables of one actor into the other, variables that have ReadOnly/EditConst speci ...

Float Curve evaluation may yield completely wrong results due to floating-point precision issue

UE - Anim - Runtime - Oct 31, 2024

Note: This is possibly related to [Link Removed]. For some inputs, function UE::Curves::WeightedEvalForTwoKeys() inside file "CurveEvaluation.cpp" can incorrectly return the value of the first key, ...

Water is missing or appears in wrong places due to incorrectly rendered WaterInfoTexture.

UE - Graphics Tools - Terrain - Water - Jun 16, 2025

Water is missing, appears in strange blocks, or appears in wrong places due to incorrectly rendered WaterInfoTexture. The WaterInfoTexture is part of the WaterZone actor. ...

In Persona, Viewport shortcuts remain default after changing Key Binding preferences

OLD - Anim - Dec 22, 2015

After adjusting viewport shortcuts in Editor Preferences, the Persona viewport seems only partially responsive to the changes. It's as if the viewport shortcuts are hardcoded for Persona. Example ...

Adjusting transform of a mesh with LODs causes LODs to flicker

UE - World Creation - Worldbuilding Tools - Foliage - Jun 3, 2015

If a hierarchical instanced static mesh has LODs and is scaled in a blueprint, the mesh will rapidly switch between LODs, causing a flickering effect. Note: This only seems to occur if the camera ...