Unreal Engine Issues

Cannot Delete Landscape with World Partition enabled

If you delete all the LandscapeStreamingProxies under the landscape object the parent landscape object can be deleted. Not a regression checked in Version: 5.1.0-23058290+++UE5+Release-5.1 ...

Water body constructor dirties actor

Modify gets called from AWaterBody constructor: WaterSplineMetadata->Reset(3); WaterSplineMetadata->AddPoint(0.0f); WaterSplineMetadata->AddPoint(1.0f); WaterSplineMetadata->AddPoint ...

Decals are corrupted when VRS is enabled on some console platforms, and possibly PC

Blocky artifacts and flickering are sometimes visible when using VRS and decals. Setting r.VRS.Decals=0 removes the flickering. See Additional Info URL for details. ...

[MetaSounds] - Trigger on Threshold node Crashes editor on play when using literal value for threshold

Editor crashes when Trigger on Threshold node is hooked up in a Metasound graph and played using a threshold value defined on the node. If you use an Input node for the Threshold value, the crash do ...

Crash In Material Editor When Previewing A Node

When previewing a blank texture sampler in the material editor while the HLSL window is open, you can assign a texture to the texture sampler and crash the engine. ...

Crash when using "ILCQ Volume" and "Distance Field Indirect Shadow" in VR

Crash when using "ILCQ Volume" and "Distance Field Indirect Shadow" in VR ...

Cannot call blueprint events on CDO

Attempting to call a blueprint event on a CDO object causes the editor to crash. Regression: Yes- Repro steps did not crash editor in binary 4.15.3 (CL 3450819) ...

The frame rate could be locked to around 45 occasionally on 90Hz android device.

FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats

Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...

In editor, sub level instance's streaming state persists incorrectly after toggling Level Behavior without saving

When adding a sub level with world partition streaming to a main level where the streaming is also enabled, setting* Level Behavior* of the sub level to Standalone, and saving the result, in the fir ...