If you enter a project from your organization, you assume the organization’s identity.
If you want to login as yourself instead, please add your personal DatoCMS account as a Collaborator in your project at https://your-project.admin.datocms.com/project_settings/users. Then if you go to your personal dashboard, you’ll see that project listed, with you having collaborator access.
Sorry about that! Just a quirk in how the org system works.