Unreal Engine Issues

[CrashReport] Crash trying to destroy an uber graph frame because the RawPointer is still set

This is a trending crash in the 4.17 Preview. Users have not provided any descriptions of their actions when the crash occurred. Source Context 2408 uint8 *Data = (uint8*)Dest; 2409 ...

Hot Reload triggers Ensure after default value of a property in a component included in an Actor class is changed

Performing a Hot Reload after changing the default value of a property in an ActorComponent that is included in an Actor class triggers an ensure if a Blueprint has been created from that Actor clas ...

Config entries to re-open asset windows are deleted if the Editor is shut down while a debugger is attached

When the "Restore Open Asset Tabs on Restart" option is turned on in the Editor Preferences window, closing the Editor while a debugger is attached appears to remove any saved asset tabs from the Ed ...

Networked Root Motion Sources can experience desynchronisation that is not present in animation root motion under forced adjustment

In a networked environment with high packet loss (or high forced adjustment factor), motion applied using Root Motion Sources can desynchronise under conditions that animation root motion does not. ...

Enhanced input actions with Down triggers mapped to gamepad buttons can get into a bad state after viewport focus is lost

When we have an enhanced input input action that uses a Down trigger and is mapped to a gamepad button, for example Gamepad Face Button Left, it can get into a bad state when the game is unfocused. ...

Unable to Create New Niagara User Parameter After Deletion without Niagara Editor Window Restart

When a user deletes a Niagara User Parameter within the Niagara System editor window, attempting to create a new parameter with the same name immediately after deletion results in an error. Despite ...

FMediaFoundationMovieStreamer::Init() returns true even if the movie could not open.

Custom Enums break blueprints on hot reload

If a custom code based enum is used inside a blueprint, doing a hot reload will break the nodes by assuming they are of a type other than enum. ...

Event Dispatchers do not update references when renamed

Event Dispatchers do not update event references when renamed if the green "+" is used to add the event in the Details Pane of an actor component. Note: Event Dispatchers appear to rename normally ...

Removing Pose from Blend by Enum causes compile error with float defining blend time

Removing Pose from a Blend by Enum node can cause compile errors when a float is defining all of the blend times. ...