The headhunter recommended me to the same position twice, and the second time I was asked by a different headhunter. Should I attend the interview this time?

This only shows that the headhunting company you contacted is unprofessional and has repeated interview arrangements for talents. The management situation can be seen. In view of this situation, the negotiation between headhunting companies and employment enterprises will not be much better, and there is no need to try again.

Suggestion: As the headhunting company will charge the enterprise a certain fee for recommending talents to the enterprise, after the enterprise pays the fee, the ability requirements of its position will often be higher than its normal tone. In other words, the same talents may be recruited through their own channels, but the headhunting recommendation may not necessarily pass.

Make persistent efforts:)