Point Gaussian Scale Array Magnitude does not work with short and char array

Short and Char Array scaling the Point Gaussian by magnitude are not working correctly

How to reproduce :

Create a PointSource, nPoints 10, Radius 1, Apply
Add a RandomAttributes, select any of Bit, Char, Unsigned Char, Short, Unsigned Short
Color by RandomPointVectors, Magnitude
Representation -> Point Gaussian
Check Point Gaussian -> Use Scale Array
Select RandomPointVectors -> Magnitude ase a scale array
All point dissapears, unexecpted
Change Random Attributes type to double
All point reappears, correctly scaled.

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