Unreal Engine Issues

DataTable with structures containing TArray and TMap keeps increasing memory while no rows are selected

When using a DataTable based on a structure that includes TArray or TMap, if a row is not selected, the memory usage will continue to increase. This is because in SDetailsViewBase::Tick, ForceRefr ...

CopyFileUnderSourceControl Fails on Already Resolved Files

CopyFileUnderSourceControl has instances when the response is not a success even though the files are copied successfully under source control. It seems FPerforceCopyWorker::Execute() tries to reso ...

Inconsistent Behavior for MarkFilesForDelete/MarkFileForDelete

MarkFilesForDelete stops the files from getting deleted if they are checked out by others while, MarkFileForDelete (non-batched version) has no problem deleting such files. It looks like MarkFilesF ...

Cooking crash during shutdown with no useful error

Sometimes some of actors are destroyed after the destruction of the solver through the garbage collector. In this case, the app crash in FChaosScene::RemoveActorFromAccelerationStructureImp because ...

Reference to control rig can be lost on actors with multiple skeletal mesh components

In the attached project, when we initially add a control rig track for the actor with multiple skeletal mesh components, we add the control rig for the correct component because FControlRigParameter ...

Subobject editor collapsed nodes are auto expanded when adding or moving a node

Node operations cause all of the collapsed nodes to be auto expanded. This is disruptive when working with complex hierarchies because you can't hide irrelevant components. ...

Changing default values in a user defined struct will break links

Changing user defined struct values appears to break any nodes that use pin splitting for the given struct. It would appear that some parent pins aren't set correctly during reconstruction, which or ...

Duplicated function in BP editor is categorized differently from copy/paste

From licensee: If I create a function in a Blueprint Interface or Blueprint Function Library and leave it in the Default category, it shows up in the "All Actions for this Blueprint" menu under "Cl ...

Validate whether the usage of FPIEFixupSerializer can be removed from UWorld::DuplicateWorldForPIE

Renaming a variable on a Blueprint will reset that variable's value on any Child BPs

If a variable is renamed on a blueprint, then any child blueprints will lose their default values for that variable and reset to the parent's default value. This resetting only happens with the Chi ...