Unreal Engine Issues

Changes to RuntimeFloatCurves do not propagate to child BPs until the Editor is restarted

Any changes made to a RuntimeFloatCurve will not be propagated to child Blueprints until the Editor has been restarted. ...

BP nativization can generate an invalid path including "__TEMP_BP__"

The licensee sent us a BP that can't be nativized correctly on UDN. The nativized BP has wrong paths and causes a crash. ...

[SolidWorks] Complex assemblies will not import correctly

Using Solidworks 2017 Service pack 4.1 the sldasm files only partially import. Instances, folders, and suppressed parts also mess up the import. Suppressed parts show up from different configuration ...

Unreal Remote 2 does not send information about motion control

Unreal Remote 2 does not give information on motion control to PC. This is different from the description of the application. Use this application alongside Unreal Engine to view and control the de ...

User created OSS plugins require modifying Engine now

This was discovered in live build and posted in UE Forums that based on changes to OSS, users (binary specifically) can no longer create their own OSS plugins as it requires modifying the Engine Sou ...

Metal SM5 shader code cannot be viewed in the Editor on Mac

The Metal SM5 shader code cannot be viewed in the Editor for a Material. Prior to 4.20, only HLSL Code could be viewed. In 4.20, a number of additional shader options were added, and they all work w ...

PIE gets stuck on infinite loop when Background Streaming is disabled

When "Use Background Level Streaming" is disabled, the Editor gets stuck loading in PIE when you press Play. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in 4.2 ...

[Rhino Import]-[Rhino Blocks]-Block is not assigned to any nested layer after reimporting

HotReload: Static Mesh property reset on custom Static Mesh Component in Pawn Blueprint when a public property is changed to private in the parent Static Mesh Component code class

Performing a Hot Reload after changing some properties in a custom Static Mesh Component code class from public to private appears to reset the static mesh set for any Pawn Blueprints that use that ...

Audio Attenuation falloff is applied even when turned off when called in Blueprints

The Sound Attentuation is not ignored when disabled as audio played from a Blueprint. Tested in 4.19.2 (CL - 4033788), 4.20.2 (CL - 4302132), 4.21 (CL - 4313833) ...