Using a fixed frame rate will cause you to leave the loop section of Montage.

UE - Anim - Runtime - Dec 10, 2021

This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...

Listen Server Without Microphone Will Drop Clients with Microphone if Voice is Enabled

UE - Networking - Mar 28, 2017

Listen servers that do not have a microphone hooked up are dropping clients that do have microphones when the client attempts to transmit voice. The log contains the following errors: [2017.03.28- ...

Sequencer shot blend will have incorrect blend time if play rate of sequence is changed.

UE - Anim - Sequencer - Jan 7, 2025

When there is a blended camera cut and the sequences playrate is changed, the camera blend time will not match the new rate and play incorrectly. ...

Having a movable directional light on an Android device, will cause the shadows to show as inverted

UE - Platform - Mobile - Feb 3, 2015

If you make the Directional light in a level movable and then deploy to an Android device, the Shadows in the level will appear reversed when you glance around the level. Tested on a Nexus 5. Te ...

Opening the ICVFX window, then closing it will set materials on your nDisplay meshes to the materials those instances were created from

UE - Virtual Production - nDisplay - Apr 13, 2023

Opening the ICVFX window, then closing it will set materials on your nDisplay meshes to the materials those instances were created from ...

Self Reference allowed as input for function with pass by reference on creation, which will crash when executed

UE - Gameplay - Blueprint - May 22, 2017

There is an issue when using self references with functions as an input. With pass by references on a function, the input has it checked by default; however, a self reference can still be hooked in ...

Categories do not save within Widget Blueprints after compiling

UE - Editor - UI Systems - Feb 13, 2015

If a variable is moved to a category outside of the default and then the user compiles the blueprint then the category will be erased and the variable will be put back in the category it was origina ...

Creating multiple Scalar Parameter nodes with a different values will crash the editor

UE - Rendering Architecture - Materials - Mar 11, 2020

This is a regression from 4.24.3 CL 11590370 This was discovered when ad-hoc from home I ran into this by running this set up https://docs.unrealengine.com/en-US/Engine/Rendering/Materials/HowTo/Cle ...

Get Class Defaults node will not keep pins visible after compile if connected to a reroute node

UE - Gameplay - Blueprint Editor - Jun 23, 2020

If the Get Class Defaults node is connected to a reroute node, compiling the blueprint will hide all the pins on the node. ...

Renaming a Collapsed node containing a function with the same name will rename both the function and the collapsed node

UE - Gameplay - Blueprint - May 22, 2019

If a collapsed node graph shares the name of a function that resides in the node graph, it will be renamed along with the collapsed node graph if the Collapsed node graph is renamed. ...