Unreal Engine Issues
Unreal Engine Issues
Mutable: Child parameters hidden when intermediate Object Group uses "All Options"
UE - Anim - Mutable - Mar 31, 2026FCustomizableInstanceDetails::FillChildrenMap() unconditionally registers parent-child relationships via __ParentParamName metadata without verifying the parent exists in the active parameter list. ...
Mesh Reshape node with modified geometry from another skeleton explodes mesh.
UE - Anim - Mutable - Mar 31, 2026Using the mesh reshape node with seperate meshes produces a broken mesh. An example project: Most if not all clothes will be originally made to fit the Average Male body. I'm trying to morph a tu ...
Having a block in layout before switching to overlay strategy affects the overlay output.
UE - Anim - Mutable - Mar 5, 2026Issue: If "Resizable" Layout Strategy contains a block, it will influence the "Overlay" Layout Strategy. Expected behavior: When using "Overlay" Layout Strategy, it should disregard whatever the "R ...
Textures from Data tables do not work with Clip with UV Mask.
UE - Anim - Mutable - Jan 23, 2026Currently this workflow fails to generate in mutable, but using static paramters for textures do work. ...
Unable to use AnimInstance metadata when using Passthrough Skeletal Mesh Component.
UE - Anim - Mutable - Jan 22, 2026With the standard non-passthrough flow you set the AnimBP on the SkeletalMesh node itself. With the passthrough SkeletalMeshComponent node I see no place to set the AnimBP. While I can set this manu ...
Dataless Mutable: Cloth Simulation Not Working With Skeletal Mesh Parameter Node?
UE - Anim - Mutable - Nov 25, 2025Testing the new dataless Mutable workflow in Unreal Engine 5.7. When replacing the old Skeletal Mesh node with the new Skeletal Mesh Parameter node, the cloth simulation stops working. ...
Mutable Ignores State of Modular Game Features
UE - Anim - Mutable - Nov 25, 2025I’m encountering an issue when working with Mutable/Customizable Objects in combination with Modular Gameplay Features (MGF). Expected: Child Customizable Objects that are located inside a disable ...
Mesh Variation node usage inside macro - lost of material slot name
UE - Anim - Mutable - Nov 14, 2025When using a mesh variation node within a macro instance script, the material slot name of the input mesh is not transferred. On the generated mesh output, the material slot name is "None" ...
Mutable bake instance overwrite instead increments
UE - Anim - Mutable - Nov 13, 2025We are using Mutable and right now we can't overwrite already baked SK instances. This occurs when, we have a set variation for a character and we address a feedback on one of the used skeletal mesh ...
Mutable compile hangs indefinitely when using Customizable Object Extension Data Constants
UE - Anim - Mutable - Oct 25, 2025I am getting a CO compile to hang indefinitely while compiling. It seems to be caused by the optimization in LocalLogicOptimiserAST that tries to convert 3+ conditionals into a switch statement. It ...