[CrashReport] UE4Editor_Core!FModuleManager::UnloadModule() [modulemanager.cpp:557]

UE - Foundation - Core - Feb 27, 2017

Error message: Assertion failed: ModuleInfo.Module.IsUnique() [Link Removed] [Line: 557] Source Context: Most recent user affected CL: Logs: See attached Issue call stack shares some similariti ...

Packaging fails when nativized blueprint implements interface with virtual function

UE - Gameplay - Blueprint - May 18, 2017

If an interface contains a virtual function that returns "nullptr", If an interface contains a UFUNCTION that has a TSubclassOf type as a parameter or return value, implementing the interface in a b ...

Foliage scalability does not accurately update when settings are changed in game

UE - World Creation - Worldbuilding Tools - Foliage - Sep 26, 2017

There is an issue that occurs where changing the scalability settings via the game script during play saves the values for the editor, but when the game is played a second time, the settings visuall ...

Meta specifier MustImplement does not list eligible blueprints that have not been opened/loaded

UE - Gameplay - Blueprint - Oct 16, 2017

Using the meta specifier MustImplement will cause the associated dropdown to only list classes/blueprints that implement the provided interface. If a blueprint has not been opened/loaded in the edit ...

Adding HISMC instances resets wind for all existing instances

UE - Graphics Features - Jul 6, 2018

When adding new HISM instances, actors using SpeedTree -> WorldPositionOffset material are reset. 4.19 Repro project provided by user. I was unable to get WPO wind working in 4.18, I did noticed th ...

Foliage: Speed tree wind is reset for every add/remove/update on instances

UE - World Creation - Worldbuilding Tools - Foliage - Jul 10, 2018

Foliage: Speed tree wind is reset for every add/remove/update on instances What is happening:When we invalidate the render state, proxy are recreated, causing the wind to be removed and add again, ...

Unable to name a component if the name was used on a deleted component

Tools - Jan 29, 2015

When deleted a component in the in world component editor, that name cannot be used for another component until the editor has been restarted. ...

Data table editor uses property names as column headings

Tools - Nov 2, 2018

The column names in the data table editor appear to directly use the property name instead of the "pretty" version of the property name. If the "DisplayName" meta specifier is used, though, that is ...

Incorrect formatting of #include statements in new code class added to project that is not properly set up for IWYU

Tools - Nov 27, 2018

Attempting to add a new code class to a project that is not correctly set up for IWYU (such as an older project that may not have been properly modified for IWYU when upgrading) will result in the b ...

Performance drop when spawning AI actors during runtime compared to placing them in world

UE - AI - Jan 9, 2019

There is a performance difference between spawning and placing AI into a level. This is causing issues when spawning/despawning AI actors in a large open world, where 4-5ms of frame time quickly bui ...