Unreal Engine Issues

Crash upon launching packaged game with nativized blueprints that include Add Child Actor Component node with a class already set

When using the Add Child Actor Component node with a class set on the node with Blueprint Nativization enabled, the packaged game crashes upon launch. A workaround for this is to leave the class bla ...

Particle memory can be corrupted leading to a crash

Crash occurs when building lighting on Mac

The Unreal Editor will crash whenever you try and build lighting. Crash does not occur in: 4.14.2 - 3241561 ...

Undo rename of Anim Curve in Anim Curves tab duplicates that curve

Undoing the renaming of an Anim Curve in the Anim Curve tab causes the curve to be duplicated. Not a regression from 4.16.2. ...

Automotive Photo Studio Template project renders custom render passes incorrectly

Renders with a custom render pass from the level in the Automotive Photo Studio Template are incorrect. They appear to be affected by auto exposure.  ...

Shader Complexity not working correctly on Deferred Decals

If you place a deferred decal in the world and then set the view mode of the viewport to "Shader Complexity", the decal doesn't affect the complexity value. ...

Enabling windows animation causes dropdowns to glitch up and down.

Observe dropdowns glitching up and down when enabling Windows Animation in editor preferences.  This is not a regression due to it occurring in 4.26.2 ...

Typo in water body ocean materials parameter

In Water_Material_Ocean material, there is a typo under FluidSimulation that says "Siulation Flowmap Speed" This is not a regression due to it occurring in 4.26.2. ...

Packaged Game crashes when using blend space that was added from the context menu

Blendspace created within an animation blueprint from the context menu throws an assertion when packaged and ran. Only occurs in packaged projects. The blendspace will work correctly in PIE, and st ...

GC Clustering broken for USoundWave assets (crash)

Assert crashes Editor in the GC system during packaging due to USoundWave assets not being configured for GC clustering. Disabling GC clustering in project settings is a workaround, but the fix is ...