Microsoft project management software used to plan, manage, and communicate a project schedule and other information among workgroup members, project managers, and other stakeholders.
Dear Albert,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
As per your description, it seems that you are having issue adding more new resource name to an existing resource sheet in Project, not saved and showing up as expected.
If the understanding above is right, to help you better, we'd like to confirm if you are having issue with Project Online Desktop client or Project Online in browser, will they encounter a similar situation?
Does this happen to a specific project or all projects? If other users encounter a similar issue on their side in your organization?
Meanwhile, we will also try to do test on our side to check if we can reproduce a similar situation, we will update the thread shortly once we finished testing.
Appreciate your patience and understanding and thank you for your time and cooperation.
Sincerely,
Rhoda| Microsoft Community Moderator