It’s not meaningless. It’s a signal that the agent has run out of context to work on the problem which is not something it can resolve on its own. Decomposing problems and managing cognitive (or quasi cognitive in this case) burden is a programmer’s job regardless of the particular tools.
I think you are saying what I was about to suggest:
For this single problem, open a new claude session with this particular issue and refining until fixed, then incorporating it into the larger project.
I think the QA agent might have been the same step here, but it depends on how that QA agent was setup.