I scheduled a meeting with the PO (Product Owner) and some other people in my team including my tech lead. PO asked some questions here and there about the issue that we're discussing. Some of them were QA related actual output results of the functionality.
When those questions were asked by the PO I redirected them to the QA person. But he just bounced them back to me. This has noted by the Tech lead as I wasn't well prepared for the meeting. In fact, I was well prepared and even came up with a uml diagram about the problem.
This seems to be a black mark on me. My yearly evaluation is at the end of this month. I am the developer who looked into this issue. (Another developer has fixed half of the issue, that developer is now in a different team) QA is a senior person.
Question : Should I send an email personally to the tech lead justifying that I was well prepared? That the QA was in lack of knowledge about the context that we were talking about?
QA person is sitting next to me. Tech lead and QA are closer than me and the Tech lead.