Unreal Engine Issues
Unreal Engine Issues
Hot reload can prevent code components from being accessible in blueprints
UE - Foundation - Cpp Tools - Hot Reload - Sep 29, 2017When a class is edited / hot reload preformed, code based components are sometimes removed from the MyBlueprint > Variables section and cannot be dragged from the Components tab into the graph with ...
Unable to dynamically load an animation blueprint in a packaged game
UE - Gameplay - Jul 27, 2015Dynamically loaded animation blueprints do not work within packaged product. Download the pre-made project from here: [Link Removed] ...
Unable to save project due to user created blueprint node that creates user created object
UE - Gameplay - Blueprint - Apr 28, 2015When a user creates a blueprint node of their own that is used to spawn a user created object, the project becomes unable to be saved after the blueprint is put into use. ...
Changing BlueprintCallable function's code results in Warning in blueprint that should be considered an Error
UE - Gameplay - Blueprint - May 3, 2016A user reported an issue where, if a BlueprintCallable function's parameters are edited, a blueprint using a BlueprintCallable function will give warnings instead of an error for a problem after the ...
Adding OnClicked to SButton in Editor Mode plugin crashes editor when accessing the plugin
UE - Foundation - Cpp Tools - Plugin System - Mar 16, 2016If a new editor plugin has a button added with OnClicked functionality, the editor will crash immediately when accessing the plugin. Removing the OnClicked portion of code allows the plugin to be a ...
Performing a Hot Reload after changing a UPROPERTY from BlueprintReadWrite to BlueprintReadOnly results in the variable not being shown in context sensitive search results in the Event Graph.
UE - Gameplay - Blueprint - Mar 3, 2015Changing a UPROPERTY value from BlueprintReadWrite to BlueprintReadOnly, or vice versa, and performing a Hot Reload results in the variables not being found in the Blueprint's Event Graph context se ...
Missing RowStruct when opening a DataTable made with custom RowStruct
UE - Editor - May 13, 2022For some reason a datatable created in the editor, using a row struct built in c++, is corrupted after re-opening editor. Its row struct property is set to none. This is a regression. ...
Gameplay Tags with the string "None" as any of its hierarchical node identifiers behave incorrectly (because of an incomplete generated FGameplayTagContainer::ParentTags array)
UE - Gameplay - Nov 19, 2024Currently, using the string "None" as a hierarchical node identifier inside a Gameplay Tag (for example "A.B.C.None.D.E.F") is not disallowed by the engine, but results in some incorrect behaviors. ...
AddLocalTransform node does not match scale behavior described in the node's documentation
UE - Gameplay - Blueprint - Jun 29, 2018The comment for the AddLocalTransform node states "Change in transform of the component in its local reference frame. Scale is unchanged." However, when the node is used, the existing scale of the o ...
LineTraceSingleByChannel returns a hit for any object it hits, regardless of whether or not that object has the specified collision channel set.
UE - Simulation - Physics - May 5, 2015The collision channel specified in LineTraceSingleByChannel does not appear to be taken into account when the trace is performed. Instead of ignoring any objects that are not set to that channel, an ...