Unreal Engine Issues

Transform is incorrect when attach track is added in master sequence if object is in both master sequence and shot sequence

It appears that attach tracks do not account for sub sequences when compensating for transform tracks when created. ...

Dynamic input scripts crash when removing IF node's Pin and recreating it

This seems to happen with other NiagaraScript. According to Licensee, when this operation is done, it seems that the ID of the parameter is incorrect. ...

Extra column that cannot be edited is shown in Property Matrix when editing a Data Asset

When using the Property Matrix to edit a Data Asset, there is an extra column shown named "Native Class" that cannot be edited. This is most likely due to the code only checking to see if a property ...

Grass on landscape Component was messed up when painting blend mask if this component has LODBias>0

BP function node inputs can unintentionally add or clobber metadata

Blueprint inputs are added to nodes as metadata, with the key set to the pin name and the value set to the default for that pin. Since blueprint functions allow you to name your own input pins, this ...

Details panel for Actor Component is blank in any Blueprint that derives from a code class using that Actor Component after the Actor Component's class name is changed

Changing the name of an Actor Component code class in a project results in any existing Blueprints that derive from code classes that use that Actor Component to not display the Actor Component's pr ...

Unable to change Blueprint Child Variable values in Python

Using the Python function unreal.SystemLibrary.set_bool_property_by_name() to change the default variable values of a child Blueprint do not work as intended. Tested in 4.20.3 (CL - 4369336), 4.21. ...

Static array based on an enum does not show the enum element names if a C-style cast is used with a space between the type being cast to and the enum

A static array based on an enum does not display the enum names in Blueprints if the size of the static array uses an explicit C-style cast with a space between the type being cast to and the enum b ...

Enabling Merge GC Clusters and Blueprint Clustering causes a packaged Window project to crash

Enabling the check boxes for Merge GC Clusters and Blueprint Clustering causes packaged Windows projects to crash on startup. The log and dump files regarding this crash have been attached to this t ...

Replicated component leak on clients if RPC forces construction and server destroys it in the same frame

RPCs called on actors force a channel to be opened and the actor to be replicated at least once. If the RPC is called on a new replicated component while the actor channel is already open, but the ...