Why am I seeing "Template with id of 1234567890123456 does not exist, or is not accessible by the Smartsheet Integration as provisioned." ?

Newly created projects with a task management approach of “Smartsheet Integration”, can be created with a link to a sheet that is not accessible to the Smartsheet Integration user. This may be because the Smartsheet template associated with the new project’s engagement type has been deleted or moved to a Smartsheet Workspace the integration user does not have access to.

Project Tasks page with error
Engag