Custom Primitive Data changes done in the details panel on a placed BP Static Mesh resets to 0 after modifiying it

Custom Primitive Data values don't stick when editing them in the detail panel on a placed BP actor containing a Static Mesh Component. 

Duplicate of [Link Removed]

Create a BP actor with a Static Mesh component with one Custom Primitive Data entry

Add the BP to the scene

Change the Custom Primitive Data (output the custom primitive data as color in a material to view)

See how the value is retained in the detail panel, but the read value in the material is reset to 0 after editing it.

[UE-23848] Bug Status

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