Unreal Engine Issues

Child actors cannot be recognized as children of parent actor within parent blueprint

Parent blueprints do not recognize child class actors as the same type as the initial parent blueprint. This makes it difficult to create a master blueprint for spawning/ai control/etc. ...

Set Active node does not appear to work for motion controllers

Set Active node does not appear to work for motion controllers. The node appears to have no effect on motion controllers ...

Crash from Saving in different ways in rapid sucuession

The editor crashes if two saves happen in rapid succession, for example, if you use Ctrl + S then immediately use Ctrl + Shift + S. This issue can be somewhat difficult to get the crash from as the ...

Modifying a UProperty pointer to an EditInlineNew class can break arrays in the same details panel

When a UProperty pointer to an EditInlineNew class is modified, we reconstruct the details panel and rerun customization builders. This can cause FDetailArrayBuilder to run it's destructor, we can u ...

Ray Traced Reflections Get Darker The Higher The Rougness Value is for Metallic Materials

Instead of reflecting an average color of the surrounding, reflections become black with increased roughness values. Found in 4.22 CL# 6574378 and 4.23 CL# 6925347 ...

VirtualScoutingInteractor BP does not allow for rotation offset

Leaving engine open for an extremely long time builds up memory usage, eventually crashing upon any activity

Edit MattK: Not reproducible yet If the editor is open and used for a long period of time without being closed, it stores memory use. After building up a significant amount of resources building us ...

Editor crash when compiling blueprint that contains an implemented interface after removing return node

If a return node is removed from an interface that has been implemented in a blueprint, compiling the blueprint will cause a crash. Crash Reporter: [Link Removed] Frequency: 2/2 ...

r.PostProcessAAQuality does not work in mobile preview on source builds

r.PostProcessAAQuality is not working properly in mobile preview on source versions of the engine. ...

Custom events cannot be overriden in child blueprints

Custom events cannot be overriden in child blueprints. The add event option is no longer available so as to override a custom event that was created in the parent. This appears to be a regression. ...