PUMA Java Software Architect interview questions

I applied online. The process took 6+ weeks. I interviewed at PUMA Nuremberg in September 2018. I first received an email inviting me to a Skype Call with HR and IT Development, then I was invited for a second interview at the Headquarters with few colleagues which asked me technical questions. The duration of the interview was approximately 2 hours. I received a feedback after almost 3 weeks - they told me they will give me a feedback in one week - and I asked more details about their refuse - after the interview they told me was a very good interview - but they never give me the reason for which they refuse me.