Unreal Engine Issues

The Console Command list printed by using "Help" misses alot items in 5.6

Crashes occur when executing MRQ while adding UMG with RetainerBox.

Create an asset containing a RetainerBox in UMG, then add the created UMG to the viewport using AddViewport. Running MRQ after this causes a crash. ...

Iris - removal of fast array item not performed on client when server array contains a non-replicated item

It is possible to add items to a replicated fast array that are not intended to be replicated to the clients. For example, FGameplayAbilitySpecContainer has a custom ShouldWriteFastArrayItem impleme ...

Undoing keyframe addition in Sequencer unselects actors in the Outliner

When a keyframe is added to a track in the Sequencer, undoing the operation correctly removes the keyframe, but it also unselects the actor. This becomes especially inconvenient when multiple actors ...

Crash when opening a texture or editing its properties after stopping a preview in the material editor

When a texture asset has certain properties edited, its PostEditChangeProperty() method calls to UTexture::NotifyMaterials(), which triggers a recompilation of materials that reference it in their m ...

'Malformed sequence hierarchy' ensure hit after modifying sub-sequence tracks

It's possible for there to be multiple instances of the same sequence in the evaluation states cache if the same sequence is used in multiple sub-sections. Caches are never removed from the evaluat ...

Modifying the view size can cause TSR history to allocate large amount of memory

When animating the split fraction of a splitscreen experience, TSR causes an significant increase in UAV memory. In PIX, this appears to be caused by TSR allocating the history multiple times when ...

MRQ - Subgraphs do not evaluate properly in Quick Render

Subgraphs do not seem to be evaluating properly with Quick Render. Message from the EPS: "While testing out Quick Render, I've found that subgraph nodes are not being evaluated. Digging into it dee ...

PoseSearch Query is flipped 180 degrees 1 frame after a capsule/actor rotation happens.

Using MotionMatching with a PoseSearchSchema with a Trajectory grouping. The query gets rotated to match the capsule/mesh component instead of the offset root/actual location of those bones/trajecto ...

RigVMRegistry : The registry is not locked for writing yet : ensure statement error during cook

I am seeing an cook failure at the very beginning. It goes away with a retry step via Horde. Please find attached call stack. I am able to consistently reproduce it by wiping all the DDC cache and ...