Having lots of SpeedTrees loaded in/out/in with level streaming causes crash with Standalone game

UE - Foundation - Core - Jan 21, 2015

Description: When using lots of static meshes placed in the scene and using level streaming to switch levels out can cause standalone game to crash while loading the map back in. For example, if you ...

Analog Input does not work for network clients (AddMovementInput scale values other than 0 and 1 do not replicate for clients)

UE - Gameplay - Jun 26, 2015

If a value other than 0 or 1 (Ex. 0.1) is put into the 'Scale Value' parameter for the Add Movement Input node, any clients will respond as if the value is 1. User claims this worked in 4.6. ...

Editor Crashes When Setting Location of Scene Component BP to World

UE - Gameplay - Blueprint - Dec 9, 2015

In an actor blueprint with a scene component blueprint as its root, if you add a child object to the scene component blueprint, and then go into the scene component blueprint and set the location to ...

Compile error with Local Variable of a Struct that contains a Set or Map type

UE - Gameplay - Mar 7, 2017

Compile error with Local Variable of a Struct that contains a Set or Map type. Standard and array variables work without issue. Non-local variables also work without issue. ...

Changes to the Navigation settings aren't saved when edited in the Static Mesh Editor

UE - AI - Mar 23, 2017

Changes to the Navigation settings aren't saved when edited in the Static Mesh Editor. The values will reset back to default values when the asset is reopened. ...

Crash caused by character referencing a reparented AnimBP

OLD - Anim - Oct 18, 2017

Placing a character that reference to a reparented AnimBP(created as a child of thirdperson, then reparented to AnimInstance) crashes editor after reopening the project. If you already had that charac ...

Attempted to use an out of date DemoNetDriver when using DemoPlay through blueprints

UE - Networking - Oct 27, 2017

Users are not able to play a Demo in PIE using the Execute Console Command node to run the demoplay command. The following warning spams the output log while the demo is still trying to open:LogWor ...

RemoveAxisMapping() removes axis mappings of the same key regardless of Scale value

UE - Gameplay - Jun 26, 2019

When you remove an axis mapping using a specific key it will remove all mappings even if they have separate scales. The user found a fix that I verified that worked. In "InputSettings.cpp", which i ...

Unable to input with IME in widget component.

UE - Editor - UI Systems - Feb 12, 2020

Unable to input IME text in widget component, but able to input IME text in textbox like UMG designer.  It works fine until 4.21, however it wasn't able to work after 4.22. Workaround: void FSla ...

[Quartz] - The multiplier does not always respected on the Quartz Quantization Boundary

UE - Audio - May 13, 2022

Increasing the multiplier past a certain point causes sounds on a Quantization Boundary to struggle to play at the correct time. The repro above uses 1/32, but this also repros with other values. ...