Unreal Engine Issues
Unreal Engine Issues
PropertySet : changes in instancedstruct are not detected by the watch
UE - Graphics Tools - Modeling Tools - GeometryScripting - Jan 24, 2025Hi, I tried to use for a scriptable tool the watch property node for a struct. The objective for me was to offer to my user a view of a struct in the scriptable tool and have these modifications b ...
UMG Throbber is not showing in project when using 'Set Number of Pieces' node off of Event tick
UE - Editor - UI Systems - Apr 22, 2015If you add a throbber to a UMG Blueprint and use the Graph of the Blueprint to change the 'Set Number of Pieces' and use 'Event Tick' to tick the widget, the throbber widget will not appear on scree ...
Error with variable during blueprint compile when selecting and deselecting widget name in UMG
UE - Editor - UI Systems - UMG - Jan 29, 2024Selecting/deselecting the name of the widget on the UMG Designer will detect bleuprint changes. If compile blueprint at this time, it will output an error "due to old pin". The widget name has not a ...
World Partition: warnings on editor only actors when running the editor in -server/-game mode
UE - World Creation - Worldbuilding Tools - World Partition - Apr 16, 2024The warning for editor-only actors is unnecessary in these modes where they don't exist. ...
Code doesn't work for custom binary projects on Linux
UE - Platform - Linux - Apr 21, 2017If a binary engine is generated from a source build on Linux, attempting to create a code project / add code to a BP project will fail to compile properly. ...
Data Layer replication bug
UE - World Creation - Worldbuilding Tools - World Partition - Aug 23, 2024The bug is data layer runtime states can get out of sync between a client and a host depending on the initial runtime state of a data layer and the size of the replicated data layer names array. Se ...
Interface with one or more BlueprintNativeEvent declarations will lead to a compile failure during packaging with Blueprint nativization enabled.
UE - Gameplay - Blueprint - Nov 14, 2017In the UHT boilerplate that's generated for the FGUseableInterface type, there is a pure virtual declaration that's emitted for the BlueprintNativeEvent's required _Implementation() method: #define ...
Using a Blutility to modify an Actor in a Streaming Level doesn't make it dirty
UE - Gameplay - Oct 11, 2018Using a Blutility to modify an Actor in a Streaming Level doesn't make it dirty and prompt it to be saved. This was reproduced and tested in 4.19.2 (CL-4033788), 4.20.3 (CL-4369336), 4.21 (CL-44358 ...
Niagara compile error : Select Position from Array
UE - Niagara - Nov 24, 2022A similar node, Select Vector From Array, does not have this problem. The difference between the two seems to be whether or not Required is checked in the input node's exposure options. ...
Project packaged on Windows for Linux crashes after exiting on Linux
Tools - Aug 18, 2016I noticed this after packaging multiple samples projects on Windows for Linux and running them on my Linux machine. The project exited cleanly, but there was a crash and callstack generated in the ...