Unreal Engine Issues

Packaging fails when nativized blueprint implements interface with virtual function

If an interface contains a virtual function that returns "nullptr", If an interface contains a UFUNCTION that has a TSubclassOf type as a parameter or return value, implementing the interface in a b ...

Crash attempting to force delete a duplicate skeletal mesh while in Paint Mode

The editor crashes when you Force Delete the vertex painted asset in the viewport from the content browser. This was not a feature in 4.15 therefore not a regression This also happens in 4.17 - f ...

CMake projects don't set the expected compiler or debugger settings

Generate a CMake project Open in CLion and see that the default compiler and debugger are not set making them the system defaults. This is a quality of life issue that would clarify things. ...

Actors in 4.16 do not enter a resting state when expected

There is extra random bouncing that can last a couple of seconds that does NOT occur in 4.15.2. Sometimes the cube would look like it settled, then randomly pop and bounce again. This happened on b ...

Hot reload fails in 4.16 projects that were upgraded from 4.15.

This issue appears to be a continuation of [Link Removed]. Hot reloads work successfully in projects that were created in 4.15 or 4.16 and are still using the same Engine version that they were crea ...

Window title/border missing from package build with resolution changed

When making a packaged game, changing the resolution via the execute console command "r.SetRes 1280x720w" causes the usual border to not appear, this occurs with any resolution using this command (s ...

Allow some scrubbing when snapping play time to keys

The option for snapping the play time to keys while scrubbing is overly aggressive. We'd expect the behavior to snap to the key within a certain tunable tolerance, similar to the option for snapping ...

Transform key time isn't accessible in the Property editor for keys

GarbageCollection - Ensure occurs when force deleting content that is still referenced in memory

While AdHoc testing in //UE4/Release-4.16 CL 3437809 in Binary – I found that deleting the projectBP folder of any Template project causes an ensure. I believe this issue is due a step in the garbag ...

Creating a plugin in a C++ project opens a second instance of Visual Studio

Note If creating the project outside of Binary, build the project in VS, but do not close it. When creating a new plugin, the editor compiles the project and opens in Visual Studio. If the project ...