The symptoms point to misaligned stakeholder engagement: some stakeholders are under-engaged, while another is over-involved in low-value interactions. The project manager should first review and update the stakeholder engagement plan (C) to recalibrate who needs what level of involvement, through which channels, and for which decisions. Updating the plan ensures engagement is intentional and tailored- defining communications frequency, meeting invitations, decision roles, and information needs based on stakeholder influence and interest. Regular communication (A) is good practice, but without adjusting the engagement strategy it can perpetuate irrelevant meetings and still fail to engage the right people. Ishikawa root cause analysis (B) is more appropriate for technical or process defect analysis and is not the first response to an engagement misfit. Removing stakeholders from meetings (D) may be part of the updated plan, but doing it immediately without aligning expectations and decision rights can create gaps in governance and dissatisfaction. A refreshed engagement plan improves collaboration efficiency, reduces meeting waste, and increases the likelihood that key stakeholders participate at the right times.