Unreal Engine Issues

If use with mesh particles or use with niagara mesh particles is checked in the Usage flag of the material and the material domain is set to volume, compile error will occur.

[SM5] /Engine/Private/VolumetricCloud.usf(118,33-53): error X3018: invalid subscript 'VertexId' This is happening in VolumetricCloud.usf, but it seems that I can avoid the error by adding the follow ...

Duplicate level collections not being respected by UGameEngine::NetworkRemapPath

When NetworkRemapPath was refactored in 4.26 to support replay connections via the rep graph, the check for duplicate level id on the driver was lost in the new code path. This causes the demo driv ...

Nameclash error when importing skeletal mesh

The attached FBX file is getting a nameclash error when imported.  This content is licensee content please delete after using. This issue is NOT occurring at 4.25.4 Binary @ CL 14818863 Marked as ...

WaitMutex behaves poorly when there are casing differences in the same path

The proposed solution here is to make the casing of the path provided to the hashing function for the mutex consistent with something like:publicstatic string GetUniqueMutexForPath(string Name, stri ...

Text type parameters show the same value after reload in duplicated actor

Issue occurs in both events and functions. Seems like it's only affecting Text, didn't notice this issue for other variable types. The original actor is working as expected. Only the duplicated one ...

GetBoundObjects is not returning spawned objects when the playback start is nonzero

Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work

Initializing a System parameter to a Niagara Parameter Collection data interface parameter does not work ...

Subobject components do not have undo functionality within the level

When moving these components around in the world editor, the transform gizmo will move with the undo, but the actual component will not.  I could not repro this behavior with non-native component ...

Selecting multiple actors with differing DataTableHandles causes data loss

The data table customization (and probably others) tries to aggressively clear out row references that are not valid in the table they point to. This breaks when selecting multiple actors or objects ...

Delay does not tick when game is paused

Delay nodes no longer fire within a paused actor even if that actor has been set to 'Tick Even when Paused' Removing the delay node from the equation allows the print node to continue firing while ...