Unreal Engine Issues

Hierarchical and normal Instanced Static Mesh Components do not maintain PerInstanceRandom values when transforms are modified

When using PerInstanceRandom in a material that is applied to a Hierarchical or normal Instanced Static Mesh component, there are issues of the value resetting when certain transform operations are ...

Reference to child actor is invalid when compiling the parent blueprint

Reference to child actor is invalid when compiling the parent blueprint. In this example, when compiling blueprint 'A' the print string result will say that "Child Actor ref is INVALID". However, if ...

Crash on opening a pose asset after reloading a skeletalMesh with bone name changes

Opening an old pose asset can crash the editor if the skeleton it uses gets updated. ...

4.18 Linux build errors using clang10

(User report) Attempting to build 4.18 Linux using v10_clang-5.0.0-centos7 results in an error: specified path differs in case from file name on disk Note: There is another issue reported in the sa ...

Can't set a value of 0, 0, 320 in the rotation key editor

Scroll Widget Into view does not scroll entire widget

When Scroll Widget Into View is called (C++ or blueprint node) the "Target" widget will scroll to the beginning of the "Widget to Find" rather than scrolling until the entire Widget to Find is in vi ...

Anim Blueprint Debug Filter Changes Back to Default When PIE

workaround Debug Filter changes back to default when PIE. When playing - Shift + F1 to release mouse Debug Filter can be changed to what is needed ...

TSubclassOf variable values reset on Hot Reload

After a hot reload, blueprint instances of TSubclassOf variables have their setting reset to "none" Regression: Yes - variable values remain after hot reload in 4.17.2 (CL 3658906) ...

Can Not Add New Notify to Notify Track In Animation Sequences or Montages On a Mac

Only occurs on Mac When clicking on the Notify Track in a Montage or in an Animation Sequence a bar shows up where you can name the new notify and after hitting enter it adds it to the Notify Track. ...

On Linux, Mouse input is not capture in Skeletal mesh editor -> Section Selection right click menu

Attempting to interact with the pop up menu that appears when right clicking in Skeletal Editor -> Section Selection causes the pop up menu to be closed instead. Regression: No - same behavior occu ...