Airrazor from Beast Wars also had that issue. In the Western market, Airrazor was female, and in Japan she was portrayed as male.. Which made the emotional scenes with Tigertron a bit awkward in the Japanese cartoon at the time.
That would be a cool storyline. As for characters with multiple personalities, only ones I can think of are Combiners. The Constructicons are individually quite intelligent, but when they form Devastator, they turn into a single mindless beast. Flywheels is also known for being mentally deranged because the jet part of his body can never seem to agree with the tank part.
I think for Cindersaur, maybe it's a male robot that turns into a female dinosaur? Dunno. There's so many ways to spin a story.