Can't un-italicize "Myriad Pro Light Cond" Font. button will not toggle "off"

[C.Patterson!6600]

Can't un-italicize "Myriad Pro Light Cond" font. All the words on the page are un-italicized and in the same font. If i try to add text ANYWHERE with this font, by default it is italicized and will not toggle off

Please help! i cannot switch fonts and 12 other flyers are already produced in this font.

[C.Patterson!6600]

has anybody else experienced this?