GX variation does not support arabic?

When i tried to test out the “GX variation” feature to create a variable version of my arabic fonts everything went fine with the latin but not with arabic

any idea what’s happening here?
using Version 2.5b (1077)

I can reproduce the problem. But I can’t see anything wrong with the font. It works fine in Chrome. This seems to be a bug in Photoshop.
I have posted about this on Typedrawers. Lets see.

Please keep me posted