If your form was accepted despite uploading only the thumbprint, it suggests that submitting all five fingerprints may not have been mandatory. However, it is advisable to check the official guidelines of the exam authority to confirm if this requirement was optional or overlooked. If any corrections are needed, the authorities may provide a correction window. You can also contact the exam helpdesk for clarification to avoid any issues during the examination process. Always ensure that all required details are submitted as per official instructions.