Unreal Engine Issues

Editing sets and maps of structures does not correctly check for duplicates

Customer created a custom DataTable with a TSet Property and saw the behavior of allowing duplicate elements within the TSet, which is not allowed. See TSet Documentation for more information. This ...

Drop Down menus displaying the editor instead of a list of options

Drop Down menus displaying the editor instead of a list of options. See attached screenshot. ...

Restarting the engine makes c++ classes not visible from the content browser

After creating c++ classes, if the engine is restarted, the c++ classes will not be visible in the content browser. However, the created classes are visible from the explorer. After opening the engi ...

Actors which do not have a custom actor factory implementation will not get their preview setting set on drag/drop from content browser

Blueprint Function graph params are not listed as local function variables, but can be accessed as such

Param usage bug when using switch params

From the ticket: In a material instance using the attached master material if A is TRUE and B is FALSE I expect to be able to configure param C in the UI. However param C is shown only when Useswi ...

Asset localization does not work properly for Paper2D related assets such as Flipbook

This issue is resolved by changing Paper2D's LoadingPhase to PostConfigInit, but this is a workaround. We suggest a better long term fix via AssetRegistry changes (see comments). In the default la ...

Starter Content's "P_Explosion" does not successfully convert to a Niagara System - incorrect loop, spawn, sprite size, and collision behaviors

Starter Content's "P_Explosion" does not successfully convert to a Niagara System - incorrect loop, spawn, sprite size, and collision behaviors Changes needed for / issues found with each emitter:A ...

Can't package project with custom engine plugin enabled.

Refraction can't be set using SetMaterialAttributes node in a material function.

From the UDN: Currently, I'm using UE5, but I've seen this issue occur in UE4 and I don't see any other posts on UDN about this. Refraction can only be set in material functions if using the MakeMa ...