Unreal Engine Issues

Entering 'Show Collision' for a project and then 'Quit' via the console command, you will receive an crash

Once a project is packaged, If you enter the console command 'Show Collision' and the 'Quit', the project will crash upon closing. This is only occurring in a packaged project and not happening whe ...

[CrashReport] UE4Editor_CoreUObject!UObjectProperty::SerializeItem() [propertyobject.cpp:39]

This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Descriptions from users are provided below. Error message: Access violation - code c0000005 ( ...

Incorrect Root Motion Rotation on AnimSequences created with Sequence Recorder

Incorrect Root Motion Rotation on AnimSequences created with Sequence Recorder ...

Crash when changing a Play Node's "Sequence" to a Montage

I understand that this is not something you're intended to be able to do (Montages aren't used this way), but we should bar the user from inserting a montage into this variable slot. Crash occurs w ...

Crash when editing draw size for a widget component

A crash will occur when editing the Draw Size of a Widget Blueprint in an Actor Blueprint class. Sometimes it will crash instantly after editing the Draw Size and other times it will take a couple ...

Emissive for Static Lighting discarded upon Re-opening Level or Restarting Project

'Emissive for Static Lighting' discarded when restarting or re-opening a project. I discovered this issue while testing [Link Removed]. This issue does not occur in the binary 4.11 release so I hav ...

A static object using 'Complex as simple' collision will not collide with a dynamic object that is simulating physics

If a static object has 'Use Complex collision as simple' set as its collision type, it'll collide with a player but will not collide with objects that are dynamically simulating physics. ...

Landscape renders default material if apply another material instance under ES31 preview

In ES3.1 preview, Landscape will render default material if change landscape material by using material instance of landscape's material. Will render correct if using another material's instance ...

Actors attached to editor only actors have incorrect location in PIE

Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1

Pausing simulation in PIE does not pause looped timers on the Server when players is set to more than 1. The Client pauses the timer as expected. With only one player, timers are paused as expected. ...