Unreal Engine Issues

Changing between multiple Streams that are contained within an array does not work

Changing between multiple Streams that are contained within an array does not work. ...

Code based FPostProcessSettings variables are not displayed properly in the editor

When a variable of FPostProcessSettings is created, the variable itself is missing in editor with the actual post process settings fully expanded instead. Additionally, the fully expanded settings ...

FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970

FDateTime is not correctly formatted by As Date Time when using any dates before January 1st, 1970. From a conversation on Slack with MaxP: this is probably an underflow the ICU based string format ...

If a pin is added to a node and then split only one of the pins can be removed

If a user adds a Vector+Vector node, adds a pin, Splits the new pin, and then removes a pin the option to remove the other two remaining pins is not available. ...

UAssetClassProperty doesn't handle placeholder classes and breaks Blueprints that use ClassAssetIDs

Editor crash in blueprint after compiling Post Process Settings node setings

Adding a variable of Post Process Settings structure to a blueprint causes the editor to crash when the blueprint is compiled. Regression: Yes - Editor did not crash on compile in 4.17.2 (CL 365890 ...

Static variable declaration causes unresolved external errors when calling FRootMotionMovementParams functions

Attempting to call a FRootMotionMovementParams function results in an unresolved externals error on compile because of the static FVector RootMotionScale variable. Workaround: In source, removing s ...

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 ...

Ensure undoing pin split - Found K2Node_CallFunction_429 ('K2Node_CallFunction') that does not belong to EventGraph.

REGRESSION: Yes, does not occur in 4.17.2 Ensure occurs when undoing the splitting of a pin. ...

Custom Node interprets MaterialAttributes inputs as float3

It seems that the Material Editor's Custom nodes don't handle inputs of type FMaterialAttributes correctly, and instead interpret them as float3. Using Material Attributes as an input to a Custom E ...