Doctor World interview questions

They have recently rebranded to Care. What a mess. I went through the first interview, which was a pleasant experience. 2nd interview was already scheduled for the following week and confirmed. About 2 days before the interview, I received an email telling me that my application was rejected due to unknown reason, they cite that it has nothing to do on my capabilities or potential. I was confused. This is so unprofessional and disappointing. Is telling that the management is not handling the career direction well. What a total let down of a company. Though, I wish you all the best in Health Tech.