Talk to her in a day or two, directly ask how to solve it, and tell her that if she can't solve it, she can only make a blind date in the group or call her. If not, you can confidently go to the leader at this time, tell the leader the whole communication process, and then tell the leader that if she doesn't want to cooperate with me, there is no way to do the work, or someone else can cooperate with me.
I think if you meet this kind of person, if he does the same to others, then it is his personal habit, not against you, so don't be too angry and think too much. If you can make him change, you can change. If not, you can call directly or walk over to communicate. After all, work belongs to work.
Another situation is that this person doesn't care about you at all and thinks there is no need to cooperate unless there is an interest relationship between you or he can get something from helping you. Talking to his boss several times may solve the problem, but it is not a long-term solution. After all, the other boss is not so idle to rush to work every day.
If he deliberately ignores or despises you, it can't be solved by pulling relationships, because nothing between you is maintained by literacy. Strive to improve their voice and importance in the workplace, and give him some color to see at the right time.
Another possibility is that the questioner's tone is rude, or obviously equal, or that he arranges others to do one thing in a commanding tone instead of negotiating or cooperating to complete one thing. I won't reply when I see such a person.
That's all, I hope it will help your problem!