Unreal Engine 5.4.2 and DLSS 3.7.10 - Movie Render Queue (MRQ) crashes

Hi All -

Just trying out the latest release of DLSS for UE 5.4.2 and I’m unable to render without crashing with DLSS enabled in MRQ (see error below). I have AA=NONE in the MRQ. Am I missing something else?
The DLSS Sample project loaded and runs fine for me.
Tried different DLSS quality settings - they all crash.
Running latest version of Nvidia Driver (555.99).

Any thoughts / suggestions? Thanks!

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Assertion failed: Family->GetTemporalUpscalerInterface() == nullptr [File:D:\build++UE5\Sync\Engine\Source\Runtime\Engine\Private\SceneView.cpp] [Line: 1132] ITemporalUpscaler should be set up in FSceneViewExtensionBase::BeginRenderViewFamily()

UnrealEditor_Engine
UnrealEditor_Engine
UnrealEditor_Renderer
UnrealEditor_Renderer
UnrealEditor_Renderer
UnrealEditor_Renderer
UnrealEditor_Renderer
UnrealEditor_MovieRenderPipelineRenderPasses
UnrealEditor_MovieRenderPipelineCore
UnrealEditor_MovieRenderPipelineCore
UnrealEditor_MovieRenderPipelineCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll

[update] - the crashes happened while testing under a project I recently completed (Canyon River scene).
I compared my Plugin / Project / Editor settings to DLSS Sample project - no differences.
Ran through the “DLSS_Super_Resolution_Quick_Start_Guide” pdf and checked all my CVars - no issues.

So, I decided to create a new project - added some meshes from the starter content - It rendered fine under DLSS - no crashes.

I deleted those meshes, added a Landscape (default values) and dropped in a Water Body River to re-create a very simplistic version of my previous project and rendered it - CRASH.

I deleted the River from my scene (left the Water Body plugin enabled in the project) and rendered again - NO CRASH.

So it seems the DLSS Plugin does not like to render Water Body Actors.