Text spaces not rendered in 64-bits version of ImageMagick (Magick++)

Hi developers,

We have encountered this bug which is related to 64-bit version of 
ImageMagick.

All spaces strings are rendered correctly using 32-bit ImageMagick, 
regardless of the TTF file being used.

But, as soon as we use 64-bit ImageMagick, spaces strings are only 
rendered if and only if we use Arial font; the rest of our fonts doesn't 
produce a space at all.

Please let us know if this is already a known issue, and how can we work 
around this.

Thank you,
Elie Zedeck.