ISO button activates original Canon ISO range

[Rascal City]

Please help.

On my T2i (and older version of ML), clicking the ISO button activates the ML range of ISO settings which include 640. On my T3i and a "Nightly Build" version of ML, clicking the same ISO button activates the original Canon range of ISO settings and does not include 640.

I would have to go into ML's menu and change ISO settings from there... which is... far from ideal in a fast pace shoot lol.

This feels too simple a problem, but i can't seem to fix it. If anyone's got ideas, i'd be grateful.

Thanks