As am I working in a small firm, there is no QA manager position here right now. We are working with different projects, currently I am focusing on 4 to 6 projects which are using agile development.
My problem is, whenever a sprint is released to the client team, the client users are finding issues that are often captured and logged in JIRA before the client receives the sprint, but the bugs are still present because of time constraints or other issues - sometimes depending on the infrastructure side and sometimes functional issues. Management is making the decision to send the sprint to the client, but blaming us when they receive client results, even though they made the decision not to prioritize the bugs.
How do I identify which issues are actual failures by my team and which are known issues we reported?
More importantly, how to I convince management of this?