Niagara editor crash

1. Create a new Niagara system by right click on the content browser.
2. Add a Fountain emitter.
3. Add a mesh renderer and change the Source Mode to Emitter.
4. Add a Quat in the Emitter Attributes and name it as "MeshOrientation".
5. Drag the atrribute to the Emitter Spawn.

It crashes at "Assertion failed: IsRotationNormalized() [Link Removed] [Line: 1300] "

(Two screen captures are attached for detail settings).

[UE-23848] Bug Status

"Session Disconnected" UEFN

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