Unreal Engine Issues

xCrash at startup when vcomp140.dll prerequisite is missing.

Some users are experiencing a Crash at startup because of missing vcomp140.dll prerequisite. ...

Crash when changing Twinmotion Cloud and Content library to the same folder.

[PCG] Undoing the deletion of a pcg actor removes the Instance Category from the pcg component, specifically no graph parameter can be seen.

Context: PCGComponents on actors contains a category "Instance" that allows the user to connect a PCG Graph of their choosing to the PCGComponent which allows the Procedural Node Graph to sample the ...

Reflections of Masked Materials incorrect with Lumen HWRT and Max Refraction Bounces > 0

Lumen HWRT Reflections of Masked Materials are incorrect when "r.Lumen.Reflections.HardwareRayTracing.Translucent.MaxRefractionBounces" is greater than 0. The same issue occurs if the Post-Process V ...

Level Merging creates a new empty level and deletes only one of the two levels merged

After merging two levels in the Levels window, only one of the two levels will be deleted and a new level will be created. Any actors in the deleted level will be deleted as well. The new level will ...

Media Sound Wave Does Not Play after Packaging

After testing multiple different ways to get a Media Sound Wave to play in sync with the associated Media Player Asset, I feel it is very hard to get the sound to even play. Not mentioning getting i ...

LIVE: Control+Right (Skip Word) in Multi-Line Text Field Freezes Editor

In any multi-line text field, scrolling to the end of the last line with the control+right (skip word) command will freeze the editor. In the AnswerHub thread, user twiddle linked to a Pull Request ...

AttachChildren on the client can lose entries

If a client attaches a scene component to a server authoritative scene component and that server component later has a change in attachment made on the server, the AttachChildren array on the client ...

The Merge Actors Tool doesn't account for rotated collision shapes when doing non-uniform scaling

Collision shapes for merged actors using the Merge Actor tool do not account for the rotation of the actor when combining the data. It looks like the X and Y collision shape rotation in the world ...

Reroute nodes break Cached Poses in AnimBPs

Reroute nodes break Cached Poses in Animation Blueprints Regression: This does not occur in 4.12 ...