ByteDance Asset Manager interview questions

2 peer interview and hiring manager interview. After complete the 3 rounds, was inform another round of interview with the new leader which this role will be reporting in.... interview was in Chinese as well ..2 weeks later , recruiter came back to say not selected as they have selected another candidate and also due to limited headcount....I can accept selected another candidate but what does limited headcount have to do with the selection process??? Recruiter was good,provide feedback quite promptly....