Caitlyn Jenner -- One Thing Hasn't Changed ... I Still Only Like Girls!

Caitlyn Jenner is still only into women ... despite what the producers of her show want you to think.

A promo for this week's episode of "I Am Cait" casts doubt on her sexual orientation, but we're told Caitlyn has not wavered an inch -- she's not attracted to men.

Our sources say Caitlyn's family has asked the same question and got an unequivocal answer ... she's into women just as much as Bruce.

It's all academic for now, because Caitlyn has made it clear she's got plenty on her plate and is not ready or interested in dating.