Unreal Engine Issues

Duplicate keys in TMap and TSet after using FJsonObjectConverter::JsonValueToUProperty

Found here: [Link Removed] The relevant sections in ConvertScalarJsonValueToFPropertyWithContainer() use script helpers to add defaulted elements to each container and then parse straight into them ...

Components attached to Camera doesn't receive late updates and "wobble"

Thin Translucent materials opaque with FS lighting mode and Output velocities active

Im not 100% sure this is a combination of settings that "should" work anyway, but need someone to have a look.Thin TranslucencyOutput velocities during base passForward Shading lighting modeProject ...

"Base Pass Shader" stat results are missing or display incorrect information while using Vulkan

Base Pass Shader results are not showing, or showing up incorrectly when looking at the Stats results within the material editor of an Unreal Editor using Vulkan. Regression Tested: //UE4/Release-4 ...

When multiple actors are selected, they have different undo behavior in the details panel

When the text in spinbox has focus, it doesn't get the change notification externally. It may also be worth noting that ctrl z or ctrl y also do not get bubbled up to undo the text box values. It a ...

Report of branching point notifies failing to trigger

The problem seems to come from a notify having its LinkedMontage set to null when RefreshBranchingPointMarkers() is called. IsBranchingPoint() fails in this case, so it's never registered as a branc ...

Crash when changing the Codec in a curve compression setting

The crash will occur when changing the Codec in a curve compression setting. This is a regression do it not happening in 4.26.2.. ...

Key input by Sequencer is missing in FBX output of parent-child actors

This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) 　　┗Actor(B) 　　　　┗Actor(C) This is how the attachments are registered, and the ke ...

Setting a float variable to a value that's beyond the maximum value of a float causes the editor to become unresponsive

When inputting an extreme large value into a float variable that exceed the maximum value of a float, the engine then becomes unresponsive. I tested this with an integer variable and this did not oc ...

First Person Template content is not available to be added to another project

First Person Template content cannot be added to another project through the "Add Feature or Content Pack" function. This occurs in both 5.0-Early Access 2 and 4.27.1 Tested in //UE4/Release-4.26 ...