I can't get Sadira's first ending

I can’t get Sadira’s first or second ending. It keeps giving me the third ending because I get 1600xp in multiple fights.

This is very annoying.

May someone help me with this???

Thanks in advance.

Don’t the third endings automatically unlock all other endings?

Nope. It should but not.

You can complete all ends with one run!

If they are not unlocking, or is bug or you are not doing what you should do to unlock

Not in season 1 story…

Same with others characters.