Unreal Engine Issues

Enable VisibilityCollision on ES31 preview and restart editor, it crashed.

Niagara Simulation Stage + DynamicMaterialParameters crash

deleting the code "&& SimulationStages[i]->bEnabled" in UNiagaraEmitter::GetScripts will bypass the problem [Image Removed] ...

Expanded vector parameters in Material Layer instance properties stay greyed out when override enabled

This only seems to happen when the vector parameter is expanded, not when it's collapsed. Collapsing and re-expanding the parameter seems to clear the issue as well. The material seems to use the o ...

Deleting a material layer from a stack, re-linking the layers, then deleting that layer again crashes the editor

The important step here is to unlink the middle layer after first relinking everything. ...

Deleting a material layer from the stack reverts other layers' overridden parameters to default

It appears as though parameters for downstream material layers are reverted to their default values and override states when an upstream material layer is deleted. ...

Activate Reverb Effect node fails to activate when placed behind a Delay node

It seems that the Activate Reverb Effect node is no longer functioning when put behind a Delay node. In the test project, there is an empty actor with a Event Begin Play connected to a Delay node wh ...

Interface cast nodes can be placed for non-object pins

Interface Cast nodes appear to be returned as valid and context sensitive for every possible pin, even ones like floats and integers. Following the repro above, it is easy to place a node but it wil ...

Macros from temporary diff blueprints can be placed and corrupt blueprint

Following the repro, a temporary copy of a BP Macro library is loaded into memory. When you right click to place a node, it incorrectly lists macros defined in this temporary library. They are fully ...

The LoadTimeFile argument crashes package at startup

SetConstraintBindingID of ConstraintSection on Sequencer cannot be set from Blueprint

The SetConstraintBindingID of the ConstraintSection on the Sequencer is the BlueprintPure function. The licensee is trying to parent and child objects on the Sequencer using sequencer scripting, and ...