Unreal Engine Issues

Setting struct variable to CurveTableRowHandle crashes editor

Editor immediately crashes if a variable is set to type Curve Table Row Handle within a structure. Frequency: 2/2 Crashreporter: N/A ...

Crash when adding a Material Layer with a MaterialFunctionCall node to a Material Instance

Adding a Material Layer to a Material Instance that has a Material Function Call node connected to the Set Material Attributes node causes the editor to crash. I tested a Material Layer without the ...

Crash when committing level instances containing invalid child actor components

Editor Crashes When Reopened Project's Level that Contains Vertex Painted Asset is Opened

Editor crashes when asset is imported in as a skeletal mesh, brought into a level, vertex painted using the paint tab under modes, all assets are saved, project is reopened, then level is reopened. ...

Crash opening Child/Grandchild Blueprint after updating to 4.18

From this UDN: https://answers.unrealengine.com/questions/718928/4180-editor-crash-while-opening-child-blueprint.html Crash occurs when opening child (or in the repro case, grandchild) blueprints a ...

Editor Crash when custom Enum is used as Set or Map container type

Making a blueprint variable a container (a Set or a Map with the Variable's "Pin Type" set to a custom Enum) and restarting the editor causes the editor to crash when opening the blueprint. Note: O ...

Crash when splitting a UDS pin on a collapsed graph

I came across this bug while attempting to verify UE-41073. That bug is verified, but I accidentally added the struct into the collapsed node without going into the collapsed graph and split the col ...

Assertion fails when a struct is opened with a BP class reference stored and with that struct as a variable in the BP class that's referenced.

Assertion fails when a struct is opened with a class reference stored and with the struct as a variable in the class that's referenced. A restart is required in order to see this occur. Repro Rate: ...

Opening Materials and Material Functions with Vertex Interpolator node Results in Crash

Per Licensee: Hello, We are migrating our project from 4.18 to 4.19.2 and we are encountering various crashes while opening our material and material functions. I'm adding a simple test case here. ...

Ensure when opening Camera Anim assets for the second time

An occasional ensure is thrown when opening Camera Anim assets. Generally, the issue occurs when opening the asset for a second time, but the repro rate is low, around 1/5. ...