/std:c++17 key is hidden in generated .vcxproj after adding it to the BuildConfiguration.xml

UE - Foundation - Cpp Tools - Dec 10, 2021

As far as I can tell this is a regression. After including C++17 in the build configuration it shouldn't be hidden in the .vcxproj? ...

Replicated Struct with TMap property cannot compile even with custom NetSerialize

UE - Networking - Dec 9, 2021

While TMaps are not supported for replication, previously one workaround for this was to wrap the TMap property in a container struct. Users could then implement a custom NetSerialize function for t ...

Incorrect number of vertices displayed by ProfileGPU command in Cascade particles

UE - Rendering - Niagara - Dec 9, 2021

This issue was reported by the licensee, but it's possible that the number of vertices in the particles is higher than it really is. ...

AttachChildren can be incorrect on client if parent and attached actors are spawned at the same time on the server

UE - Networking - Dec 8, 2021

See linked UDN for more info. It seems as though if both a parent actor and its attached actors are created at the same time on the server, then there is a chance the attached actors won't appear at ...

Using the Transform Tool to manipulate multiple Event Trigger keys at different times in the Sequencer Curve graph sometimes causes crash

UE - Anim - Sequencer - Dec 8, 2021

This is not a regression. I was able to reproduce the crash in 4.26. Using the transform tool to manipulate keys for an Event Trigger within the curve editor of sequencer sometimes causes it to cra ...

Water line misaligned if Screen Percentage is less than 100% while Temporal Upsampling is enabled

UE - Rendering - Dec 7, 2021

Water line is misaligned if screen percentage is less than 100% while Temporal Upsampling is enabled. ...

Double clicking the thumbnail for a TSoftObjectPtr to a UWorld will load the level without prompting the user to save

UE - Editor - Dec 6, 2021

Currently, double clicking on a thumbnail for a SoftObjectPtr to a UWorld will load that level in the level editor without checking if the current world is dirty or prompting to save. This can resul ...